Choose the word nearly opposite in meaning to the given word:

ANXIETY:

NUMS Mock 2
English
Key Vocabulary
A) Problem
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B) Worry
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C) Relaxed
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D) Nervous
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Choose the lettered word or phrase that is most nearly opposite in meaning to the word in capital letters:

DISTRESS:

NUMS Mock 2
English
Key Vocabulary
A) Suffering
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B) Lash out
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C) Noisy
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D) Upset
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E) Happiness
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Either my father or my brothers __________ going to sell the car.

NUMS Mock 2
English
Fill in the blank
A) Is
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B) Are
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C) Were
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D) Was
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Choose the nearest meaning to the following word:

Relinquish

NUMS Mock 2
English
Key Vocabulary
A) Use
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B) Surrender
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C) Increase
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D) Retain
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The word closest in the meaning to ‘on the wrong foot’ is:

NUMS Mock 2
English
Key Vocabulary
A) Stumble
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B) Humble
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C) Dependable
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D) Presentable
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Identify the correct form of the verb to complete the sentence:

She _______ her keys on the kitchen counter.

NUMS Mock 2
English
A) Laid
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B) Lain
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C) Lay
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D) Lies
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Identify the correct usage of the homophones in the sentence:

I have two ______ of shoes – one for running and one for work.

NUMS Mock 2
English
A) Pares
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B) Pairs
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C) Peares
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D) Pears
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Antonym of Adapt will be:

NUMS Mock 2
English
Key Vocabulary
A) Approve
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B) Applaud
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C) Shed
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D) Reject
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Choose the correct sentence:

NUMS Mock 2
English
Tenses and Sentence Structure
A) He always loved sweets, chocolates, biscuits, and cakes.
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B) He always loved, sweets, chocolates, biscuits and cakes.
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C) He always loved sweets. chocolates, biscuits, and cakes.
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D) He always loved sweets, chocolates biscuits and cakes.
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Choose the correct answer:

NUMS Mock 2
English
Tenses and Sentence Structure
A) They replaced gold with paper money.
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B) They substituted gold with paper money.
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C) They substituted gold for paper money.
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D) They replaced gold for paper money.
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Complete the sentences by choosing the most appropriate option, from the given lettered choices (A to D) below each.

He composed a great many pieces _____ music in his life time.

NUMS Mock 2
English
A) Too
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B) Of
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C) At
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D) In
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Select the word or phrase which is closest in meaning to the underlined words.

Due to his continuous mischievous activities, he has become a rogue person.

NUMS Mock 2
English
Key Vocabulary
A) Thief
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B) Honest
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C) Dishonest
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D) Sharp
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Choose the correct sentence:

NUMS Mock 2
English
Tenses and Sentence Structure
A) Does your train leave before eight o’clock?
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B) Do your train leave before eight o’clock?
Show Explanation
C) Does your train leaves before eight o’clock
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D) Does your train leave before eight oclock?
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In the following question, four alternative sentences are given. Choose the CORRECT option.

NUMS Mock 2
English
Grammar and Punctuation
A) It is healthful to eat a variety of food.
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B) It Were healthful to eat a variety of food.
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C) It is healthful to ate a variety of food.
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D) It were healthful to ate a variety of food.
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What type of sentence is this?

When I go swimming, I have to keep my eyes closed underwater.

NUMS Mock 2
English
Tenses and Sentence Structure
A) Complex
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B) Simple
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C) Compound
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D) None
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On receiving the news of the sudden demise of a close friend; which is the most probable hormone that is secreted at that time?

NUMS Mock 2
Biology
Homeostasis
A) Prostaglandin
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B) Growth inhibitors
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C) Estrogen
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D) Adrenaline

The ability of an individual to pass on its phenotype to future generations is known as:

NUMS Mock 2
Biology
Reproduction
A) Fitness
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B) Heritability
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C) Limited environmental resources
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D) Overproduction of offspring
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Which organ(s) in the male reproductive system produce gametes?

NUMS Mock 2
Biology
Reproduction
A) Vas deferens
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B) Malpighian tubule system
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C) Seminiferous tubules
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D) Ejaculatory duct
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Which processes are essential in making nitrogen from dead plant material available to growing plants?

ammonification
deamination
nitrification
nitrogen fixation
NUMS Mock 2
Biology
Man and His Enviornment
A) I, II and III only
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B) I, II and IV only
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C) I, III and IV only
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D) II, III and IV only
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Erythroblastosis foetalis occurs when:

NUMS Mock 2
Biology
Variation and Genetics
A) Mother is Rh-positive and baby is Rh-negative
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B) Mother is Rh-negative and the baby is Rh-positive
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C) Both mother and baby are Rh-negative
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D) Both mother and baby are Rh-positive
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Which of the following basic structural level of proteins is indicated by an association of two alpha and two beta chains in the haemoglobin molecule?

NUMS Mock 2
Biology
Biological Molecules
A) Primary structure
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B) Secondary structure
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C) Tertiary structure
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D) Quatenary Structure
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Which processes are essential in making nitrogen from dead plant material available to growing plants?

ammonification
deamination
nitrification
nitrogen fixation
NUMS Mock 2
Biology
Man and His Enviornment
A) I, II and III only
Show Explanation
B) I, II and IV only
Show Explanation
C) I, III and IV only
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D) II, III and IV only
Show Explanation

Carbon dioxide fixation can be enhanced by enhancing the efficiency of:

NUMS Mock 2
Biology
Bioenergetics
A) Auxins
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B) Ribulose bisphosphate
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C) Lactoferrin
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D) Agrobacterium
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Which of the following is not an infection of the lungs/respiratory tract?

NUMS Mock 2
Biology
Gaseous Exchange
A) Histoplasmosis
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B) Tuberculosis
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C) Cystic fibrosis
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D) None of the given options
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Which of the following animals can survive without drinking water?

NUMS Mock 2
Biology
Nutrition
A) Kangaroo rat
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B) Pig
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C) Kangaroo
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D) Camel
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Carbon dioxide joins the photosynthetic pathway at:

NUMS Mock 2
Biology
Bioenergetics
A) PSI
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B) PSII
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C) Light reaction
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D) Dark reaction
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A man who has type AB blood cannot father a child with type ___ blood, because he would pass on either the ___ or the B allele to all of his offspring.

NUMS Mock 2
Biology
Variation and Genetics
A) A,O
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B) O,A
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C) B, O
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D) B, A
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Which of the following nutrients is incorrectly paired with its function in a plant?

NUMS Mock 2
Biology
Nutrition
A) Potassium – Formation of cell wall
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B) Magnesium – Constituent of chlorophyll
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C) Nitrogen – Constituent of protein
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D) Phosphorus – Component of nucleic acid
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The function of respiratory passage, Cilia is to keep the airways clear of:

NUMS Mock 2
Biology
Gaseous Exchange
A) Carbon dioxide
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B) Oxygen
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C) Dust
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D) Carbon Monoxide
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Which of the following is NOT a difference that would allow one to distinguish between a prokaryotic and a eukaryotic cell?

Presence of absence of the nucleus
Presence or absence of the cell wall
Membrane bound versus no membrane bound organelles
NUMS Mock 2
Biology
Cell Structure and Function
A) I only
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B) II only
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C) III only
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D) I and II only
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A person got an infection, he became ill but then he survived. What do you think which of immunity he would have developed?

NUMS Mock 2
Biology
Transport
A) Active immunity
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B) Artificially induced active immunity
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C) Passive immunity
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D) Naturally induced active immunity
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Which component enters into mitochondria after glycolysis?

NUMS Mock 2
Biology
Bioenergetics
A) Pyruvate
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B) Acetate
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C) Oxaloacetate
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D) Acetyl – CoA
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The RNA found in Ribosomes is:

NUMS Mock 2
Biology
Chromosomes and DNA
A) mRNA
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B) rRNA
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C) tRNA
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D) Polysome
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In the human cell, ______ is responsible for producing hydrogen peroxide.

NUMS Mock 2
Biology
Cell Structure and Function
A) Lysosomes
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B) Mitochondria
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C) Peroxisomes
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D) Glyoxysomes
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DNA made by joining pieces from two or more different sources:

NUMS Mock 2
Biology
Biotechnology
A) Probes
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B) Restriction endonuclease
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C) Mutated DNA
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D) Recombinant DNA
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Germ cells give rise to:

NUMS Mock 2
Biology
Growth and Development
A) Legs
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B) Head
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C) Eggs and sperms
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D) Hands
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Following group is the example of acoelomates:

NUMS Mock 2
Biology
Kingdom Animalia
A) Annelids
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B) Aschelminthes
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C) Molluscs
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D) Platyhelminthes
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The system involved in preparing our body in condition of stress and emergency:

NUMS Mock 2
Biology
Coordination and Control
A) Nervous system only
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B) Endocrine system only
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C) Both nervous & endocrine system
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D) Both endocrine & exocrine
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Which of the following is NOT a part of the immune system?

NUMS Mock 2
Biology
Transport
A) Phagocytes
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B) Complement Proteins
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C) Cytokines
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D) Atherosclerosis
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When were bacteriophages discovered by Twort?

NUMS Mock 2
Biology
Bio-diversity | Variety of Life
Variety of Life
A) 1915
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B) 1920
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C) 1910
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D) 1820
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They serve as a scaffold for formation of higher order chromatin structure:

NUMS Mock 2
Biology
Cell Structure and Function
A) Nucleosome
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B) Nucleus
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C) Chromosomes
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D) Histones
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______ causes amoebic dysentery in humans:

NUMS Mock 2
Biology
Kingdom Proctista
A) Pelomyxa palustris
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B) Entamoeba histolytica
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C) Trichonympha
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D) Trypanosoma
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The smaller (40S) of ribosome combines with larger subunit (60S) in the presence of Mg2+ ion to form _____ particle.

NUMS Mock 2
Biology
Cell Structure and Function
A) 100 S
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B) 90 S
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C) 80 S
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D) 70 S
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Tails can be regenerated in:

NUMS Mock 2
Biology
Growth and Development
A) The larvae of amphibians
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B) Lizards
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C) Both lizards and the larvae of amphibians
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D) None of the given options
Show Explanation

What part of the brain integrates sensory information such as pain and temperature?

NUMS Mock 2
Biology
Coordination and Control
A) Forebrain
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B) Midbrain
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C) Hindbrain
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D) Spinal cord
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It is the smallest eukaryote:

NUMS Mock 2
Biology
Kingdom Protista
A) Virus
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B) Bacteria
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C) Plasmodium
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D) Sponge
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What is the role of cholesterol in the cell membrane?

NUMS Mock 2
Biology
Cell Structure and Function
A) it functions in joining adjacent cells together.
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B) It functions in recognizing foreign cells.
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C) It increases the rate of transport of ions across the membrane.
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D) It stabilizes the cell membrane.
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In a forest, there are a lot of plants; trees, shrubs, and herbs. What will the Palm trees face if they grow in the same forest?

NUMS Mock 2
Biology
Man and His Environment
A) Intraspecific competition.
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B) Interspecific competition
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C) Environmental competition
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D) All of the above
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Which one of the following is most likely to occur in a boy during puberty?

NUMS Mock 2
Biology
Reproduction
A) He produces eggs
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B) His shoulders broaden
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C) The colour of his eyes change
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D) None of these options is correct
Show Explanation

The end product of glycolysis in anaerobic respiration is:

NUMS Mock 2
Biology
Bioenergetics
A) Ethanol and Carbon dioxide
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B) Lactate
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C) Pyruvate
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D) Both A and B
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The branch of science dealing with the fossil record is called:

NUMS Mock 2
Biology
Biology and its Major Fields of Specialization
A) Genetics
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B) Taxonomy
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C) Archeology
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D) Palentology
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The passageways of the respiratory system mucous secreting cells called:

NUMS Mock 2
Biology
Gaseous Exchange
A) Tracheal cells
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B) Goblet cells
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C) Surfactant cells
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D) Pleural cells
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Digestion of which food components starts from the oral cavity?

NUMS Mock 2
Biology
Nutrition
A) Proteins
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B) Fats
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C) Carbohydrates
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D) Vitamins
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Nitrogen-fixing bacteria in root nodules fix nitrogen in soil air into:

NUMS Mock 2
Biology
Nutrition
A) Ammonia
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B) Nitrite
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C) Nitrate
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D) Amino acid
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Which of the following occurs in the body in response to the secretion of Glucagon?

NUMS Mock 2
Biology
Homeostasis
A) Conversion of glucose to glycogen in liver cells
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B) Decrease in blood glucose concentration
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C) Increased uptake of glucose by muscle cells
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D) Production of cyclic AMP in target cells
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Major coordinating centre for sensory and motor signaling is:

NUMS Mock 2
Biology
Coordination and Control
A) Thalamus
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B) Cerebrum
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C) Hypothalamus
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D) Cerebellum
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Lymph vessels transfer the lymph into blood through_________.

NUMS Mock 2
Biology
Transport
A) Subclavian artery
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B) Subclavian vein
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C) Iliac artery
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D) Iliac vein
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Which vertebrae together are called pelvic vertebrae?

NUMS Mock 2
Biology
Support and Movement
A) Coccygeal and lumbar
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B) Sacral and lumbar
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C) Sacral and coccygeal
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D) Sacral and thoracic
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Leaves of ……….. are used to cure cough and cold in horses.

NUMS Mock 2
Biology
Kingdom Plantae
A) Glycyrrhiza glabra
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B) Cassia alata
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C) Bamboo
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D) Both bamboo and Glycyrrhiza glabra
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Antheridia and archegonia are _____ organs in bryophytes.

NUMS Mock 2
Biology
Kingdom Plantae
A) Reproductive
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B) digestive
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C) respiratory
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D) none of the above
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Type of sclerenchyma cells found in seed coats are:

NUMS Mock 2
Biology
Support and Movement
A) Fibers
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B) Tracheids
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C) Sclereids
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D) Vessels
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Which of the following bones are present in the palm of the hand:

NUMS Mock 2
Biology
Support and Movement
A) Carpals
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B) Metacarpals
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C) Phalanges
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D) Tarsal
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The Latin words of the name given to a human being, Homo Sapiens, include the:

NUMS Mock 2
Biology
Evoloution
A) Genus and family
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B) Family and order
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C) Order and class
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D) Genus and class
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E) Genus and species
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_________ is the exact position of a gene on the chromosome.

NUMS Mock 2
Biology
Chromosomes and DNA
A) Trait
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B) Centromere
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C) Genotype
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D) Locus
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The following statements are about enzymes:

1. They are globular proteins

2. They can be inhibited by competitive inhibitors

3. They are formed in the smooth endoplasmic reticulum

4. There are only found attached to Plasma membranes in the cell

Which statements are correct for all enzymes?

NUMS Mock 2
Biology
Enzymes
A) 1 and 4
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B) 2 and 4
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C) 1 and 2
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D) 1,2,3 and 4
Show Explanation

The idea that opposed the idea of abiogenesis was proposed by?

NUMS Mock 2
Biology
Cell Structure and Function
A) Robert Hooke
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B) Robert Brown
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C) Rudolph Virchow
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D) Lorenz Oken
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When the concentration of the external medium is equal to the concentration of the internal medium of a cell, the situation is called:

NUMS Mock 2
Biology
Biological Molecules
A) Hypertonic
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B) Hypotonic
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C) Isotonic
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D) Heterotonic
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Lysosomes function in:

NUMS Mock 2
Biology
Cell Structure and Function
A) Protein synthesis
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B) Processing
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C) Intracellular digestion
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D) Lipid synthesis
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When a fetus is in the uterus, what carries oxygen away from the placenta?

NUMS Mock 2
Biology
Growth and Development
A) The amniotic fluid
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B) The amniotic sac
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C) The lining of the uterus
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D) The umbilical cord
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Genetic information in the DNA is encoded as:

NUMS Mock 2
Biology
Chromosomes and DNA
A) Deoxyribose sugar
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B) Ribose sugar
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C) Phosphate group
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D) Sequence of nitrogenous bases
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Why cannot viruses replicate on their own?

NUMS Mock 2
Biology
Variety of Life
A) They are too small.
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B) They have no cell wall.
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C) They lack metabolic machinery.
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D) All of theoptions are correct.
Show Explanation

A capacitor and an inductor are connected to A.C. supply. If we double the frequency of A.C. supply then the effect on reactance of capacitor XC and reactance of inductor XL will be:

NUMS Mock 2
Physics
Electronics
A) Both XC and XL are doubled
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B) Both XC and XL are halved
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C) XC is doubled and XL reduces to half
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D) XL is doubled and XC reduces to half
Show Explanation

A 3-cm length of wire is moved at right angles across a uniform magnetic field with a speed of 2.0 m/s . If the flux density is 5.0 teslas, what is the magnitude of the induced e.m.f?

NUMS Mock 2
Physics
Magnetism and Electromagnetic Induction
A) 0.03 V
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B) 0.3 V
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C) 0.6 V
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D) 10 V
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Law of Conservation of Momentum states that total linear momentum of system remains constant if:

NUMS Mock 2
Physics
Forces and Motion
A) Balanced external forces are applied to a system
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B) No external force is applied to a system
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C) Only linear force is applied in a system is zero
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D) Sum of external forces are applied to a system is zero
Show Explanation

Which of the following gives the relationship between linear velocity and angular velocity?

NUMS Mock 2
Physics
Circular Motion and Momentum
A) v = rω
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B) v = rθ
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C) v=sω
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D) v=sθ
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A traveling wave, in which the particles of the disturbed medium move perpendicular to the direction of propagation of the wave is called:

NUMS Mock 2
Physics
Wave Motion and Sound
A) Transverse wave
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B) Longitudinal wave
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C) Standing wave
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D) shock wave
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Half-life of iodine-131 is 8 days. If 20mg is present initially. How much iodine is left behind after 2 half-lives?

NUMS Mock 2
Physics
Nuclear Physics
A) 10 mg
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B) 5 mg
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C) 2.5 mg
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D) 1.25 mg
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The half-life of a radioactive element depends upon:

NUMS Mock 2
Physics
Nuclear Physics
A) Amount of element present
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B) Pressure
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C) Temperature
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D) None of the above options are correct
Show Explanation

If the body is rotating with uniform angular velocity, then its torque is:

NUMS Mock 2
Physics
Circular Motion and Momentum
A) Zero
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B) 90
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C) 1
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D) -1
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Which of the following is an instrument for monitoring radiations:

NUMS Mock 2
Physics
Nuclear Physics
A) GM tube
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B) Radar
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C) Wilson cloud chamber
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D) All of the above
Show Explanation

What is the name of the energy which is released when an atom is formed from its constituent particles?

NUMS Mock 2
Physics
Nuclear Physics
A) Atomic Energy
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B) Radioactive Energy
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C) Nuclear Energy
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D) Binding Energy
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Which of the following phenomenon proves that light waves are transverse waves?

NUMS Mock 2
Physics
Electromagnetic Waves
A) Polarization
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B) Refraction
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C) Interference
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D) Diffraction
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Simple Harmonic Motion of a body is described by which statements mentioned below:

K : K.E is maximum when displacement x = 0

L : P.E is maximum when x = 0

M : P.E is maximum when x = ± x0

NUMS Mock 2
Physics
Oscillations and Simple Harmonic Motion
A) K and L
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B) K and M
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C) K, L and M
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D) L and M
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A guy is standing in a lift falling freely under gravity and releases a ball from hand. As seen by the ball, the boy:

NUMS Mock 2
Physics
Gravitation
A) Falls down
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B) Remains stationary
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C) Goes up
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D) None of above
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Identify the postulate(s) which help to formulate a mathematical model of gases.

I. A finite volume of gas consists of very large number of molecules

II. The size of the molecules is much smaller than the separation between molecules

III. Molecules do not exert force on each other except during a collision.

NUMS Mock 2
Physics
Heat and Thermodynamics
A) I only
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B) II only
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C) III only
Show Explanation
D) I & II only
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E) I, II & III
Show Explanation

A uniform wire of resistance 3 ohm is folded in such a way that it forms an equilateral triangle, then what is it’s resistance across the ends of any two vertices?

NUMS Mock 2
Physics
Current Electricity
A) 2 ohm
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B) 3 ohm
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C) ⅔ ohm
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D) 3/2 ohm
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A mass has constant acceleration, what is true about the force applied on it?

NUMS Mock 2
Physics
Forces and Motion
A) Constantly increasing
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B) Constant but not zero
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C) Is directly proportional to square of displacement
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D) Is directly proportional to velocity
Show Explanation

If x-component of a vector is v3 and y-component is 1, then the angle made by the vectoralong x-axis is:

NUMS Mock 2
Physics
Scalars and Vectors
A) 60O
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B) 30O
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C) 45O
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D) 90O
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By increasing the area of the plates and decreasing the distance between them, the capacitance of a capacitor:

NUMS Mock 2
Physics
Electrostatics
A) Increases
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B) Decreases
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C) Remains unchanged
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D) Depending upon temperature
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In Young’s Double slit experiment, if the spacing between the slit is doubled and the linear distance from the screen is reduced to one half then the spacing between the two adjacent bright fringes will be ____ of actual value.

NUMS Mock 2
Physics
Optics, Nature of Light and Optical Instruments
A) Remains same
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B) Reduce to one half
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C) Reduce to one quarter
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D) Increase to twice
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A ship approaching a seaport at 10 km/h sends a sonic signal of frequency of 1000 Hz. What is the apparent frequency of the signal as received by a receiver on the seaport?

NUMS Mock 2
Physics
Wave Motion and Sound
A) 984 Hz
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B) 1000 Hz
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C) 1008 Hz
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D) 1210 Hz
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How much more thumb pressure must a nurse use to administer an injection with a hypodermic needle of inside diameter 0.30 mm compared to one with inside diameter 0.60 mm? Assume that the two needles have the same length and that the volume flow rate is the same in both cases.

NUMS Mock 2
Physics
Fluid Dynamics
A) Twice as much
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B) 4 times as much
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C) 8 times as much
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D) 16 times as much
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The energy stored in the capacitor is written as:

NUMS Mock 2
Physics
Electrostatics
A) ½ CV2
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B) ⅓ CV2
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C) CV2
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D) None of these
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In a coil, when current changes from 10 A to 4 A in 1 s. An induced emf of 1.2 V is induced across the coil. The self – inductance of the coil is:

NUMS Mock 2
Physics
Magnetism and Electromagnetic Induction
A) 2 H
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B) 0.2 H
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C) 0.002 H
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D) 5 H
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For adiabatic process, the first law of thermodynamics is:

NUMS Mock 2
Physics
Heat and Thermodynamics
A) w =∆u = Q
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B) Q = -w
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C) Q = w
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D) w = -∆u
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Which of the following best describes the magnetic field lines created by a long, straight, current-carrying wire?

NUMS Mock 2
Physics
Magnetism and Electromagnetic Induction
A) Rays that emerge from the wire
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B) Circles centered on the wire
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C) Lines parallel to the wire
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D) Lines perpendicular to the wire
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The time period of a seconds pendulum on the surface of moon becomes:

NUMS Mock 2
Physics
Oscillations and Simple Harmonic Motion
A) 2 sec
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B) 1 sec
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C) ⅓ sec
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D) 12 sec
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If a wave can be polarized, it means, it is:

NUMS Mock 2
Physics
Wave Motion and Sound
A) Longitudinal wave
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B) Stationary wave
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C) Superimposed wave
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D) Transverse wave
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The magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity is called:

NUMS Mock 2
Physics
Magnetism and Electromagnetic Induction
A) Magnetic flux
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B) Magnetic field intensity
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C) Magnetic induction
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D) Self inductance
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Consider an object placed on a frictionless inclined plane at a height of 5m , if it is released, what will be its velocity at the bottom of the inclined plane?

NUMS Mock 2
Physics
Forces and Motion
A) Insufficient information
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B) 10 m/s
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C) 100 m/s
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D) 20 m/s
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A force F = 0.12 N is applied on a spring and the spring elongates by 3 cm. The specific constant of the spring is?

NUMS Mock 2
Physics
Oscillations and Simple Harmonic Motion
A) 0.4 Nm-2
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B) 40 Nm-1
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C) 400 Nm-1
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D) 4 Nm-1
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Which of the following bond is responsible for joining the amino acids in proteins?

NUMS Mock 2
Chemistry
Chemistry of Life
A) Peptide Bond
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B) Ionic Bond
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C) Metallic Bond
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D) Disulfide Bond
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Which enthalpy change is relevant in the following process

Na(s) -> Na (g) ΔH = +107

NUMS Mock 2
Chemistry
Thermochemistry
A) Enthalpy of atomization
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B) Enthalpy of fusion
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C) Enthalpy of vaporization
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D) Enthalpy of formation
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Solid NaCl is a bad conductor of electricity because:

NUMS Mock 2
Chemistry
States of Matter – Gases, Liquids and Solids
A) Solid NaCl is covalent
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B) In the solid state, there are no ions
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C) In solid NaCl there is no migration of ions
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D) In solid NaCl, there are no electrons
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Thirty joules of heat flow into a system. The system in turn does 50 Joules of work. The internal energy of the system has:

NUMS Mock 2
Physics
Heat and Thermodynamics
A) Increased by 80 joules
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B) Decreased by 80 joules
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C) Increased by 20 joules
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D) Decreased by 20 joules
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The resultant of two forces has magnitude of 20N . if one of the forces is of magnitude 20√3 N and makes an angle of 30o with the resultant then, the other forces must be of magnitude:

NUMS Mock 2
Physics
Scalars and Vectors
A) 10√3 N
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B) 20 N
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C) 20√3 N
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D) 10 N
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An alpha particle is ejected from the nucleus of an atom. Which of the following answers describes the change in the nucleus of the atom?

NUMS Mock 2
Physics
Nuclear Physics
A) The atomic number increases by 1, and the mass number remains unchanged.
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B) The atomic number increases by 1, and the mass number decreases by 4.
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C) The atomic number increases by 1, and the mass number increases by 2.
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D) The atomic number increases by 2, and the mass number increases by 4.
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E) The atomic number decreases by 2, and the mass number decreases by 4.
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Which of the following does not give iodoform test?

NUMS Mock 2
Chemistry
Aldehydes and Ketones
A) Ethanol
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B) Ethanal
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C) Acetophenone
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D) Benzophenone
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Which of the following compounds will give a secondary alcohol after reaction with NaBH4?

NUMS Mock 2
Chemistry
Alcohols, Phenols and Ethers
A) CH3COCH3
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B) CH3COOCH3
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C) CH3CH2CHO
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D) CH3CH2COOH
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Role of a catalyst in a chemical reaction is to:

NUMS Mock 2
Chemistry
Reaction Kinetics
A) Decreases yield of a reaction
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B) Decreases rate of a reaction
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C) Increase yield of product
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D) Increase rate of a reaction

Which of the following reagents will reduce butanoic acid to butanol?

NUMS Mock 2
Chemistry
Carboxylic Acids and its Derivatives
A) LiAlH4
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B) LiAlH4.H2O
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C) Mg(BH4)2
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D) All of the above
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Sodium Benzoate on reacting with soda lime forms:

NUMS Mock 2
Chemistry
Carboxylic Acids and its Derivatives
A) Benzoic Acid
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B) Benzene
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C) Toluene
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D) Benzaldehyde
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The common features, among the species CN, CO and NO are:

NUMS Mock 2
Chemistry
Chemical Bonding
A) Bond order three and Isoelectronic
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B) Bond order three and weak field ligands
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C) Bond order two andπacceptors
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D) Isoelectronic and weak field ligands
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Which of the following shows the Planck’s quantum theory?

NUMS Mock 2
Chemistry
Atomic Structure
A) E =hcv
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B) E = c/v
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C) E = cv
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D) None of these options are correct
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Which of the following does not show variable valency?

NUMS Mock 2
Chemistry
Atomic Structure
A) Mn
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B) Fe
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C) Zn
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D) Cr
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Name the orbital n = 5; l = 2; m = 0.

NUMS Mock 2
Chemistry
Atomic Structure
A) 5p
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B) 5d
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C) 5s
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D) 5f
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Formalin is an aqueous solution of:

NUMS Mock 2
Chemistry
Aldehydes and Ketones
A) Formic acid
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B) Formaldehyde
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C) Furfuraldehyde
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D) Acetone
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The conversion of phenol to benzene in the presence of zinc involves:

NUMS Mock 2
Chemistry
Alcohol, Phenols, and Ethers
A) Oxidation
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B) Reduction
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C) Dehydroxylation
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D) Dehydrogenation
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The enthalpy change of the reaction

H2(g) + ½ O2 -> H2O (l)

under standard conditions is:

NUMS Mock 2
Chemistry
Thermochemistry
A) Enthalpy change of formation of water
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B) Enthalpy change of neutralization
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C) Both; Enthalpy change of combustion of Hydrogen and enthalpy change of formation of water
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D) Enthalpy change of combustion of Hydrogen
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Which one is not related to evaporation?

NUMS Mock 2
Chemistry
Thermochemistry
States of Matter
States of Matter – Gases, Liquids and Solids
A) Continuous
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B) Endothermic
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C) Exothermic
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D) Spontaneous
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Enzymes that are functioning within the cell are called:

NUMS Mock 2
Chemistry
Chemistry of Life
A) Endoenzymes
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B) Exoenzymes
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C) Holoenzymes
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D) Both A & C
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A parallel plate capacitor has a capacitance C. If the distance between the plates and the plates both halves, the capacitance will be?

NUMS Mock 2
Physics
Electrostatics
A) 0.5 C
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B) 4 C
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C) 0.25 C
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D) 2 C
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Which of the following is the angle of projection of a projectile if its range is equal to its height?

NUMS Mock 2
Physics
Forces and Motion
A) 48
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B) 60
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C) 90
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D) 76
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Why is water added after the reduction process of aldehyde and ketone with LiAlH4?

NUMS Mock 2
Chemistry
Aldehydes and Ketones
A) Because water reacts violently with LiAlH4
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B) Because water will protonate LiAlH4
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C) Because water inhibits the process
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D) Because it will result to alkenes
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Solid NaCl is a bad conductor of electricity because:

NUMS Mock 2
Chemistry
States of Matter – Gases, Liquids and Solids
A) Solid NaCl is covalent
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B) In the solid state, there are no ions
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C) In solid NaCl there is no migration of ions
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D) In solid NaCl, there are no electrons
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Which of the following compounds is responsible for the depletion of ozone layer?

NUMS Mock 2
Chemistry
Environmental Chemistry
A) Chlorofluorocarbons
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B) Carbon tetrachlorie
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C) Methane
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D) Hydroflorocarbons
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When a charged particle is projected perpendicular to a magnetic field:

NUMS Mock 2
Physics
Electrostatics
A) Its path is circular in a plane perpendicular to the plane of magnetic field
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B) The speed and kinetic energy of the particle remains constant
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C) The velocity and momentum of the particle changes only in direction
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D) The time period of revolution, angular and frequency of revolution is independent of velocity of the particle and radius of circular path
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Which of the following reaction takes place when acetone reacts with HCN ?

NUMS Mock 2
Chemistry
Aldehydes and Ketones
A) Electrophilic addition
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B) Nucleophilic elimination
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C) Nucleophilic addition
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D) Electrophilic addition
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Which is not a meta directing group:

NUMS Mock 2
Chemistry
Fundamental Principles of Organic Chemistry
A) -NO2
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B) -COOH
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C) -NH2
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D) -COR
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Chlorofluorocarbons (CFCs) are important compounds that are used as refrigerants but these are also responsible for Ozone layer depletion. If a Chlorofluorocarbon CFCl3 is present in stratosphere, which of it’s reaction intermediates are actually responsible for the breakdown of the ozone molecule?

NUMS Mock 2
Chemistry
Environmental Chemistry
A) CFCl2* and Cl*
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B) Cl* and ClO*
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C) CFCl2* and ClO*
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D) CFCl2 and CFCl3
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Iso-Butyl alcohol has following carbon attached to hydroxyl group:

NUMS Mock 2
Chemistry
Alcohol, Phenols, and Ethers
A) Tertiary
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B) Secondary
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C) Quaternary
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D) Primary
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A wheel starts rotating from result with angular acceleration of 2 rads-2 till its angular speed becomes 6 rad/s. The angular displacement of the wheel will be equal to:

NUMS Mock 2
Physics
Circular Motion and Momentum
A) 4 rad
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B) 9 rad
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C) 12 rad
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D) 7 rad
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To avoid the formation of toxic compounds with chlorine, which substance is used for disinfecting water?

NUMS Mock 2
Chemistry
s and p Block Elements
A) KMnO4
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B) Chloramines
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C) O3
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D) Alums
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The isomers due to the unequal distribution of carbon atoms on either side of the functional group belonging to the same homologous series are called:

NUMS Mock 2
Chemistry
Fundamental Principles of Organic Chemistry
A) Functional isomers
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B) Position isomers
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C) Chain isomers
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D) Metamers
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NaNO3 on heating gives:

NUMS Mock 2
Chemistry
Periodicity in Elements
A) O2
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B) NO2
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C) O2 + NO2
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D) NaNO2 + O2
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The rate of a reaction in general can be increased by all the following factors except:

NUMS Mock 2
Chemistry
Reaction Kinetics
A) By increasing temperature
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B) Using a suitable catalyst
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C) By an increase in activation energy
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D) By increasing conc. Of reactants
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Which one of the following organic compounds have the least carbon-carbon bond length?

NUMS Mock 2
Chemistry
Hydrocarbons
A) Ethene
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B) Ethane
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C) Ethyne
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D) Methane
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Strongest acid among the following is:

NUMS Mock 2
Chemistry
Carboxylic Acids and its Derivatives
A) HCOOH
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B) CH3COOH
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C) (CH3)2CHCOOH
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D) (CH3)3CCOOH
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Which balanced chemical equation show the formation of ethanoyl chloride using thionyl chloride?

NUMS Mock 2
Chemistry
Alkyl Halides and Amines
A) HCOOH + SOCl2 —> HCOCI + SO2 + HCI
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B) CH3CH2COOH + 2SOCl -> CH3CH2COCl + SO2 + HCI
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C) CH3CH2COOH + 2SOCl -> CH3CH2COC1 + SO3 + HCI
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D) CH3COOH + SOCl2 -> CH3COCl + SO2 + HCI
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Gas is enclosed in a container of 20 cm3 with the moving piston. According to kinetic theory of gases, what will be the effect on freely moving molecules of the gas if temperature is increased from 20 C to 100 C?

NUMS Mock 2
Chemistry
States of Matter – Gases, Liquids and Solids
A) Pressure will become one half
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B) Volume will be increased
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C) Temperature has no effect on freely moving molecules
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D) Colliding capability of molecule will become lower
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What type of chemical reaction is this?
CH3CHO + NH3 -> CH3CH(OH)NH2

NUMS Mock 2
Chemistry
Aldehydes and Ketones
A) Addition – elimination
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B) Electrophilic addition
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C) Free radical addition
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D) Nucleophilic addition
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Example of a nucleophile is:

NUMS Mock 2
Chemistry
Fundamental Principles of Organic Chemistry
A) BF3
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B) AlCl3
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C) SO3
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D) CN
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Which of the following acts as an electrophile in the electrophilic substitution of benzene with bromine?

NUMS Mock 2
Chemistry
Hydrocarbons
A) Br+
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B) FeCl4+
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C) Fe2+
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D) Fe3+
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Enthalpy of a compound is equal to its

NUMS Mock 2
Chemistry
Thermochemistry
A) Heat of combustion
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B) Heat of formation
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C) Heat of solution
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D) Heat of dilution
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Down the group acid-base behaviour of metallic oxides of group 2 elements changes to:

NUMS Mock 2
Chemistry
s and p Block Elements
A) More basic
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B) No change
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C) Less basic
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D) More acidic
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Copper is a typical transition metal. Its atomic number is 29. In which oxidation state does it have a partially filled orbital in d-subshell?

NUMS Mock 2
Chemistry
d and f Block Elements
A) Cu
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B) Cu+
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C) Cu-
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D) Cu2+
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In photo-emission from a metal, if light of λ is replaced by light of wavelength λ / 4 , the maximum kinetic energy of the photoelectrons.

NUMS Mock 2
Physics
Dawn of Modern Physics
A) Decreases by an amount equal to half of an incident photon of wavelength λ
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B) Increases by an amount equal to four times energy of an incident photon of wavelength λ
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C) Increases by an amount equal to the work function of the metal
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D) Decreases by an amount equal to the energy of an incident photon of wavelength λ
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The bond, which is based on attractive forces between oppositely charged ions, is:

NUMS Mock 2
Chemistry
Chemical Bonding
A) Covalent bond
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B) Dative bond
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C) Ionic bond
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D) Metallic bond
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A 3 kg stone falls from a 20m high platform. Find its falling speed at 10 m height.

NUMS Mock 2
Physics
Forces and Motion
A) 196 ms-1
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B) 14 ms-1
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C) 10 ms-1
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D) 100 ms-1
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By treating CO2 with Grignard’s reagent, the following compound is obtained;

NUMS Mock 2
Chemistry
Carboxylic Acids and its Derivatives
A) Aromatic compounds
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B) Alcohols
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C) Carboxylic acid
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D) Ethers
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The stability in the following structure is due to the:

NUMS Mock 2
Chemistry
Chemical Bonding
A) Weak van der Waal’s forces
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B) Disulfide bridges
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C) Presence of unpaired electron in the structure
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D) Hydrogen bonding between NH group of one peptide and CO group of another peptide
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A container is divided into two equal portions. One portion contains an ideal gas at pressure P and temperature T while the other portion is a perfect vacuum. If a hole is opened between two portions:

NUMS Mock 2
Physics
Heat and Thermodynamics
A) There will be a change in internal energy
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B) There will be a change in temperature
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C) There will be no change in internal energy
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D) The external pressure will increase
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