Effusion of gases take place through a hole with:

NTS 2019
Chemistry
States of Matter – Gases, Liquids and Solids
Diffusion And Effusion
Elimination Tool:

A) Hole dimensions
B) Infinite dimensions
C) Slit like dimensions
D) Molecular dimensions:

In a zero-order reaction, the rate is independent of:

NTS 2019
Chemistry
Reaction Kinetics
Order of reaction and its determination
Elimination Tool:

A) The temperature of the reaction
B) The concentration of reactants.
C) Concentration of products
D) Catalyst used

Copper (Cu, z=29) is a

NTS 2019
Chemistry
Atomic Structure
Sub Atomic Particles and Their Discoveries
Elimination Tool:

A) d1 system with respect to the electronic configuration
B) d3 system with respect to THE electronic configuration
C) d7 system with respect to the electronic configuration
D) d10 system with respect to the electronic configuration

The pH of 10-3 mol dm-3 of an aqueous solution H2SO4 is:

NTS 2019
Chemistry
Acids, Bases and Salts
Buffer Solutions and Their Applications
Elimination Tool:

A) 3.0
B) 2.7
C) 2.0
D) 1.5

The chemical formula of Tincal is:

NTS 2019
Chemistry
Periodicity in Elements
Introduction to the Periodic Table
Elimination Tool:

A) Na2B2O7.10H2O
B) Na2B4O7 . H2O

C) Na2B4O7 . 10 H2O

D) Na2B2O5 . 10 H2O

Determine the significant figures in 0.0085:

NTS 2019
Physics
Measurements
Significant Figures
Elimination Tool:

A) 4
B) 3
C) 2
D) 1

A catalyst increases the rate of reaction by:

NTS 2019
Chemistry
Thermochemistry
Elimination Tool:

A) decreasing the activation energy
B) decreasing the concentration of reactants
C) decreasing the temperature
D) increasing the temperature

The chief ore of aluminium is:

NTS 2019
Chemistry
s and p Block Elements
Introduction to s and p Block Elements
Elimination Tool:

HIDE ELIMINATED OPTIONS
A) Na3AlF6
B) Al2O3NH2O

C) Al2O3
D) Al2O3.H2O

Down’s cell is used to prepare:

NTS 2019
Chemistry
Periodicity in Elements
Introduction to the Periodic Table
Elimination Tool:

A) Sodium carbonate
Show Explanation
B) Sodium bicarbonate
Show Explanation
C) Sodium hydroxide
Show Explanation
D) Sodium metal

An ionic compound A+ B- is most likely to be formed when:

NTS 2019
Chemistry
Chemical Bonding
Ionization Energy
Elimination Tool:

A) The ionization energy of A is high and the electron affinity of B is low.
B) The ionization energy of A is low and the electron affinity of B is high.
C) The ionization energy of A and the electron affinity of B is high.
D) The ionization energy of A and the electron affinity of B is low.

The oxidation state of Cl in HClO4 is:

NTS 2019
Chemistry
Solution and Colloids
Energetics of Solution
Elimination Tool:

A) -1
B) +5
C) +7
D) -7

The value of R (the gas constant) is

NTS 2019
Chemistry
States of Matter – Gases, Liquids and Solids
Gas Laws and General Gas Equation
Elimination Tool:

A) 0.0821dm3 atm k mol-1.
B) 803143 Nmk-Imole
C) 0.0821 dm3 atm k-I mol-1
D) 8.3143 dm3 atm-k-I mol

In t-butyl alcohol, the tertiary carbon is bonded to:

NTS 2019
Chemistry
Alcohol, Phenols, and Ethers
Elimination Tool:

A) No H-atoms
B) One H-atoms
C) Three H-atoms
D) Four C-atoms

The unit cell parameters of the monoclinic system are:

NTS 2019
Chemistry
States of Matter – Gases, Liquids and Solids
Crystal Lattice and Lattice Energy
Elimination Tool:

A) a = b ≠ c ; α=β=γ=90
B) a ≠ b ≠ c ;α=γ=90 ; β≠90
C) a ≠ b = c ;α=β=90; γ≠90
D) a = b = c ;α=β=γ=90

The mass of an electron is:

NTS 2019
Chemistry
Atomic Structure
Sub Atomic Particles and Their Discoveries
Elimination Tool:

A) 1.008 amu
B) 1.009 amu
C) 0.000550 amu
D) 0.5500 amu

When 3d orbital is complete, the next entering electron goes into:

NTS 2019
Chemistry
Atomic Structure
Sub Atomic Particles and Their Discoveries
Elimination Tool:

A) 4f
B) 4s
C) 4p
D) 4d

Which of the hydrogen compounds has the highest percentage of ionic character?

NTS 2019
Chemistry
Chemical Bonding
Hydrogen Bonding
Elimination Tool:

A) HCI
B) HBr
C) HI
D) HF

Hydrogen bonds are represented by:

NTS 2019
Chemistry
Chemical Bonding
Hydrogen Bonding
Elimination Tool:

A) dative bonds
B) full bond
C) partial charges
D) dotted bonds

SN2 reactions can be best carried out with:

NTS 2019
Chemistry
Alkyl Halides and Amines
Reactivity and Reactions of Alkyl Halides
Elimination Tool:

A) Primary alkyl halides
B) Secondary alkyl halides
C) Tertiary alkyl halides
D) Both primary and tertiary alkyl halides

The rate of E1 reaction depends upon:

NTS 2019
Chemistry
Fundamental Principles of Organic Chemistry
Introduction to Fundamental Principles of Organic Chemistry
Elimination Tool:

A) The concentration of the substrate
B) The concentration of the nucleophile
C) The concenıration of the nucleophile and the substrate
D) The amount of the solvent used

The number of moles of CO2 which contain 8.0 g of oxygen is:

NTS 2019
Chemistry
Stoichiometry
Mole
Elimination Tool:

A) 0.25
B) 0.50
C) 0.75
D) 1.00

How many atmospheres correspond to 1050 torr?

NTS 2019
Chemistry
States of Matter – Gases, Liquids and Solids
Daltons Law of Partial Pressures
Elimination Tool:

A) 1.050
B) 10.38
C) 1.380
D) 2.760

Which one of the following bonds has the highest bond energy?

NTS 2019
Chemistry
Chemical Bonding
Bond Energy and Bond Length
Elimination Tool:

A) C-C
B) C ≡ C
C) N ≡ N
D) H-F

The nature of positive rays depends on:

NTS 2019
Chemistry
Atomic Structure
Sub Atomic Particles and Their Discoveries
Elimination Tool:

A) The nature of the electrode:
B) The nature of the discharge tube
C) The nature of the residual gas.
D) The shape of the electrode

The carbon number of gasoline is:

NTS 2019
Chemistry
Hydrocarbons
Introduction to Hydrocarbons
Elimination Tool:

A) C5 – C6
B) C6 – C7
C) C5 – C10
D) C12 – C15

Hydrogen resembles the elements of groups:

NTS 2019
Chemistry
Periodicity in Elements
Periodic Trends
Elimination Tool:

A) I-A, V-A and VIll-A
B) I-A, IV A and Vl-A
C) I-A, II-A and VIl-A
D) I-A, IV-A and VIl-A

Name the main product formed as a result of the following reaction

H3C – (CH2)5 – CH3 ————> Product

n-heptane

Conditions: 480 – 550 C, 150 – 399 psi V2O5

NTS 2019
Chemistry
Hydrocarbons
Introduction to Hydrocarbons
Elimination Tool:

A) Benzene
B) Toluene
C) Xylene
D) Cyclohexane

The chemical name of K2[Zn(OH)4] is:

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) Potassium tetrahydroxyzinc (II)
B) Potassium tetrahydroxozincate (II)
C) Potassium tetrahydroxyzincate (VI)
D) Potassium hydroxyzinc (II)

The pH of 10-3 M H2SO4 solution is:

NTS 2019
Chemistry
Acids, Bases and Salts
Buffer Solutions and Their Applications
Elimination Tool:

A) 3.0
B) 2.7
C) 2.0
D) 1.5

The solubility product of AgCl is 2.0×10-10 mol-2 dm-6. The maximum concentration of Ag+1 ions in the solution is:

NTS 2019
Chemistry
Chemical Equilibrium
Solubility Product and Precipitation Reactions
Elimination Tool:

A) 2.0×10-12 mol dm-3
B) 1.41x 10-5 mol dm-3
C) 1.0×10-12 mol dm-3
D) 2.5×10-10 mol dm-3

Metallic character of the elements:

NTS 2019
Chemistry
Periodicity in Elements
Periodic Trends
Elimination Tool:

A) decreases down the groups
B) increases down the groups
C) decreases across the periods
D) increases across the periods

The number of bonds in nitrogen molecules are:

NTS 2019
Chemistry
Chemical Bonding
Energetics of Bond Formation
Elimination Tool:

A) One sigma and one pi
B) One sigma and two pi
C) Three sigma only
D) Two sigma and one pi

The ligand field effect splits five degenerate d-orbitals into two sets with different energies, the pair of high energy degenerate orbitals is:

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) dxy, dyz

B) dyz, dzx
C) dx2 ,d
D) dx2 – y2, dz2

The oxidation potential standard hydrogen electrode is arbitrarily taken as:

NTS 2019
Chemistry
Electrochemistry
Oxidation Number or State
Redox Equations
Elimination Tool:

A) -0.76 volts
B) 0.00 volts
C) +1.5 volts
D) 1.0 volts

Which of the following pair groups belong to meta directing Groups?

NTS 2019
Chemistry
Fundamental Principles of Organic Chemistry
Introduction to Fundamental Principles of Organic Chemistry
Elimination Tool:

A) NH2 and -NO2
B) -OR and -OH
C) -NO2 and – SO3H
D) CI and -COOH

For an equilibrium change involving gaseous phase, the forward reaction is first order while the reverse reaction is second order. The unit of Kp for the forward equilibrium is:

NTS 2019
Chemistry
Chemical Equilibrium
Equilibrium Constant
Elimination Tool:

A) atm
B) atm2
C) atm-1
D) atm-2

Write the chemical name of the given structure.

NTS 2019
Chemistry
Fundamental Principles of Organic Chemistry
Introduction to Fundamental Principles of Organic Chemistry
Elimination Tool:

A) 4-ethy1-25-hexadiyne
B) 3-ethyl-1,4-hexadiene
C) 3-ethyl-1,4-hexadiyne
D) 3.ethyl-2,5-hexadiyne

Which of the following ions has the largest heat of hydration?

NTS 2019
Chemistry
Chemical Bonding
Energetics of Bond Formation
Elimination Tool:

A) Na+
B) Al3+
C) F-
D) Sr2+

Ethers show the phenomenon of:

NTS 2019
Chemistry
Fundamental Principles of Organic Chemistry
Introduction to Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Position isomerism
B) Chain isomerism
C) Metamerism
D) Cis-trans isomerism

Sp hybrid orbitals are formed by the mixing of:

NTS 2019
Chemistry
Atomic Structure
Sub Atomic Particles and Their Discoveries
Elimination Tool:

A) One s and two p
B) One s and three p
C) One s and one p
D) Two s and two p

Which of the following molecules have zero dipole moments?

NTS 2019
Chemistry
Chemical Bonding
Electron Affinity and Electronegativity
Elimination Tool:

A) NH3
B) CHCl3
C) H2O
D) BF3

A limiting reactant is the one, which:

NTS 2019
Chemistry
Stoichiometry
Theoretical Yield, Actual Yield and Percentage Yield
Elimination Tool:

A) is taken in lesser quantity in grams as compared to the other reactant
B) is taken in lesser quantity in volume as compared to the other reactant
C) gives the minimum amount of the product which is required
D) gives equal amounts of the reactants and products

Paramagnetic elements contain:

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) All paired electrons
B) All unpaired electrons
C) Few unpaired electrons.
D) Unequal electrons and protons

What is the order of the following reaction:

2NO +O2 -> 2NO2

NTS 2019
Chemistry
Reaction Kinetics
Order of reaction and its determination
Elimination Tool:

A) 0
B) 1
C) 2
D) 3

Orbitals having the same energy are called:

NTS 2019
Chemistry
Atomic Structure
Sub Atomic Particles and Their Discoveries
Elimination Tool:

A) Hybrid orbitals
B) Degenerate orbitals
C) valence orbitals alence orbitals
D) Sub-orbitals

The oxidation state of Cl in HClO4 is:

NTS 2019
Chemistry
Solution and Colloids
Colligative Properties of Solutions
Elimination Tool:

A) -1
B) -5
C) +7
D) -7

Choose the correct IUPAC name for the following complex.

[Cr(NH3)4Cl2]Cl

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) Trichlorotetra amine chromium (lII)
B) Tetraamminedichlorochromium (III) chloride.
C) Dichloro Tetra ammonia chromium (III) chloride
D) Dichlorotetra amine chromate (lll) chloride

Tritium, an isotope of hydrogen contains:

NTS 2019
Chemistry
Atomic Structure
Sub Atomic Particles and Their Discoveries
Elimination Tool:

A) An equal number of electrons and neutrons
B) An equal number of electrons, protons and neutrons
C) The number of neutrons is double the number of protons
D) The number of protons is double the number of neutrons.

Which one of the following is NOT a nucleophile?

NTS 2019
Chemistry
Alkyl Halides and Amines
Reactivity and Reactions of Alkyl Halides
Elimination Tool:

A) H2S
B) BF3
C) NH3
D) CN-

Diamond is a bad conductor because it:

NTS 2019
Chemistry
Atomic Structure
Experiments in Atomic Struture
Elimination Tool:

A) Has a tight structure
B) Has high density
C) Has no free electron in the crystal
D) Is transparent to light

The electrophile in aromatic sulfonation is:

NTS 2019
Chemistry
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
Elimination Tool:

A) H2SO4
B) HSO4
C) SO3H+
D) SO3

What are the products of the below-mentioned equation?

HNO3 +3HCI→

NTS 2019
Chemistry
Periodicity in Elements
Introduction to the Periodic Table
Elimination Tool:

A) 2H2O + NOCI+Cl2
B) H2 + NOCI+ 2HOCI
C) H2O+ NOCI+ 2HCl
D) 2H2O+NOCI+ 2Cl

One Calorie is equivalent to:

NTS 2019
Chemistry
Thermochemistry
Heat Capacity and Calorimetry
Elimination Tool:

A) 0.4184J
B) 41.84 J
C) 4.184 J
D) 418.4 J

The colour of transition metal complexes is due to:

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) d-d transition of electrons.
B) Paramagnetic nature of transition elements
C) Loss of s-electrons
D) Refraction phenomenon

Which statement about the following equilibrium is correct?

2SO2 (g) + O2(g) ⇌ 2SO3(g) ΔH= – 395 KJ/ mole

NTS 2019
Chemistry
Chemical Equilibrium
Equilibrium Constant
Elimination Tool:

A) The value of Kp falls, with a rise in temperature
B) The value of Kp falls with an increase in pressure
C) The value of Kc is equal to Kp
D) The value of Kc remains constant with rise in temperature.

The molarity of pure water is:

NTS 2019
Chemistry
Stoichiometry
Mole
Elimination Tool:

A) 1
B) 18
C) 36
D) 55.5

The volume occupied by 1.4 g N2 at STP is:

NTS 2019
Chemistry
Stoichiometry
Theoretical Yield, Actual Yield and Percentage Yield
Elimination Tool:

A) 22.4 dm3
B) 1.12 dm3
C) 11.2 dm3.
D) 1.4 dm3

The net heat change in a chemical reaction is the same whether it is brought about in two or more different ways in one or several steps. This is known as:

NTS 2019
Chemistry
Thermochemistry
Hess’s Law
Elimination Tool:

A) Henry’s law
B) Hess’s law.
C) Joule’s principle
D) Dalton’s law

The oxidation number of Br in Br2 is:

NTS 2019
Chemistry
Electrochemistry
Oxidation Number or State
Elimination Tool:

A) -1
B) -2
C) 0
D) +1

Which of the following gases is used for welding purpose:

NTS 2019
Chemistry
Hydrocarbons
Introduction to Hydrocarbons
Elimination Tool:

A) ethene
B) ethane
C) propane
D) ethyne

Complete the sentences by choosing the most appropriate option, from the given lettered choices (A to D) below each:
We must ______ back by six o’clock.

NTS 2019
English
Fill in the blank
Elimination Tool:

A) Be
B) Can
C) Has
D) Have

Read the passage and answer the following question:

Anglo-Saxon is now, of course, a dead language, but a good deal of its vocabulary has survived, in one form or another to the present day. Most of the very common words in modern English are Anglo-Saxon in origin; nouns like father, mother, food, drink, bed, hunger; most of the prepositions and conjunctions; and nearly all the strong verbs. When it was mixed with Norman French, there were three main results: the grammar was simplified, the pronunciation and spellings became much more complicated and the vocabulary was enormously extended. French is a Latin language, so the major part of our vocabulary is now Latin in origin.

A “dead language” is:

NTS 2019
English
Passage
Elimination Tool:

A) A dialect of language
B) Latin language
C) Mixed with other languages
D) No more spoken

Choose the word most similar in meaning to the capitalized one.

LEGEND:

NTS 2019
English
Key Vocabulary
Elimination Tool:

A) History
B) Outburst
C) Place
D) Story

Choose the word most similar in meaning to the capitalized one.

DEMONSTRATE:

NTS 2019
English
Key Vocabulary
Elimination Tool:

A) Establish
B) Invent
C) Produce
D) Show

Choose the word most similar in meaning to the capitalized one.

UNAMBIGUOUS:

NTS 2019
English
Key Vocabulary
Elimination Tool:

A) Exact
B) Clear
C) Interesting
D) Sufficient

Complete the sentences by choosing the most appropriate option, from the given lettered choices (A to D) below each:

Her hair was hanging ______ her back.

NTS 2019
English
Fill in the blank
Elimination Tool:

A) Beyond
B) By
C) Down
D) From

Identify the word or phrase that needs to be changed for the sentence to be correct.

The fact of the matter is never I’d been out to the theatre that night, had supper afterwards, and came in late.

NTS 2019
English
Identify errors in sentence
Elimination Tool:

A) Never
B) That
C) Late
D) Afterwards

Read the passage and answer the following question:

Anglio – Saxon is now, of course, a dead language, but a good deal of its vocabulary has survived, in one form or another to the present day. Most of the very common words in modern English are Anglo – Saxon in origin; nouns like father, mother, food, drink, bed, hunger; most of the prepositions and conjunctions; and nearly all the strong verbs. When it was mixed with Norman French, there were three main results: the grammar was simplified, the pronunciation and spellings became much more complicated and the vocabulary was enormously extended. French is a Latin language, so the major part of our vocabulary is now Latin in origin.

The vocabulary was “enormously extended” means vocabulary has:

NTS 2019
English
Passage
Elimination Tool:

A) Increased
B) Reduced
C) Simplified
D) Survived

Choose the lettered word or phrase that is most nearly opposite in meaning to the word in capital letters.

BRILLIANT

NTS 2019
English
Key Vocabulary
Elimination Tool:

A) Adequate
B) Dull
C) Troubled
D) Unprejudiced

Choose the lettered word or phrase that is most nearly opposite in meaning to the word in capital letters.

ENFEEBLED:

NTS 2019
English
Key Vocabulary
Elimination Tool:

A) Distanced
B) Dominant
C) Mistaken
D) Powerful

Choose the lettered word or phrase that is most nearly opposite in meaning to the word in capital letters.

INVADERS:

NTS 2019
English
Key Vocabulary
Elimination Tool:

A) Characteristics
B) Historians
C) Inhabitants
D) Results

Identify the word or phrase that needs to be changed for the sentence to be correct.

In Maxwell’s days, no instruments had been made which could register the greatly enormously long waves of electricity.

NTS 2019
English
Identify errors in sentence
Elimination Tool:

A) No
B) Could
C) Greatly
D) Wrong

Choose the word most similar in meaning to the capitalized one.
FLEE

NTS 2019
English
Key Vocabulary
Elimination Tool:

A) Escape
B) Face
C) Fear
D) Flow

Complete the sentences by choosing the most appropriate option, from the given lettered choices (A to D) below each:

Birds usually ______ eggs in their nests.

NTS 2019
English
Fill in the blank
Elimination Tool:

A) Laid
B) Lain
C) Lay
D) Lie

Choose the lettered word or phrase that is most nearly opposite in meaning to the word in capital letters.

UNLIKELY:

NTS 2019
English
Key Vocabulary
Elimination Tool:

A) Familiar
B) Possible
C) Powerful
D) Take for granted

Identify the word or phrase that needs to be changed for the sentence to be correct.

When I go into a bank, I get frighten.

NTS 2019
English
Identify errors in sentence
Elimination Tool:

A) When
B) A
C) Get
D) Frighten

Read the passage and answer the following question:

That freedom means freedom only from foreign domination, is an outworn idea. It is not merely governments that should be free but the people themselves who should be free; and no freedom has any real value for the common man or woman unless it means freedom from want, freedom from disease, freedom from ignorance. This is the main task that confronts us if we are to take our rightful place in the modern world. We cannot hold the clock back, and there it is we who must go forward at a double pace bending all our resources and all our energies to this great purpose.

The great purpose mentioned by the writer at the end of the passage refers to:

NTS 2019
English
Passage
Elimination Tool:

A) Freedom from foregin domination
B) People themselves should be free
C) The real value of freedom
D) Taking our rightful place in the modern world.

Complete the sentences by choosing the most appropriate option, from the given lettered choices (A to D) below each:

The house ______ before we moved in.

NTS 2019
English
Fill in the blank
Elimination Tool:

A) Paint
B) Painted
C) Has painted
D) Was painted

Identify the word or phrase that needs to be changed for the sentence to be correct.

This long experience of European domination has naturally produced a mood of quite resistance.

NTS 2019
English
Identify errors in sentence
Elimination Tool:

A) This
B) Long
C) European
D) Quite

Read the passage and answer the following question:

That freedom means freedom only from foreign domination, is an outworn idea. It is not merely governments that should be free but the people themselves who should be free; and no freedom has any real value for the common man or woman unless it means freedom from want, freedom from disease, freedom from ignorance. This is the main task that confronts us if we are to take our rightful place in the modern world. We cannot hold the clock back, and there it is we who must go forward at a double pace bending all our resources and all our energies to this great purpose.

An ‘’outworn’’ idea is?

NTS 2019
English
Passage
Elimination Tool:

A) Great
B) Not new
C) Scientific
D) Undeveloped

Primary function of fats in aquatic mammals is ________ and in terrestrial mammals is ________.

NTS 2019
Biology
Homeostasis
Thermoregulation
Elimination Tool:

A) to reserve water, to reserve salts
B) to reserve salts, to reserve water
C) To reserve food, conserving heat
D) Conserving heat, to preserve food

Formation of _____ will be greater with the faster breakdown of glucose and glycogen to compensate for energy requirements in anaerobic respiration

NTS 2019
Biology
Bioenergetics
Elimination Tool:

A) Enzymes
B) Hormones
C) Lactic acid
D) Fat

In eggs, Ca+2 plays an important role especially at the time of fertilization. Therefore _______ are present in many thousand numbers inside the cell membrane.

NTS 2019
Biology
Cell Structure and Function
Cytoplasm and Organelles
Elimination Tool:

A) Ribosomes
B) Chloroplast
C) Mitochondria
D) Endoplasmic Reticulum

Choose the term from the following which is NOT a part of gene therapy?

NTS 2019
Biology
Biotechnology
Gene Therapy
Elimination Tool:

A) Bone marrow transplant
B) Retrovirus
C) DNA Fingerprinting
D) Somatic cells

What is in q2 Hardy Weinberg equilibrium?

NTS 2019
Biology
Evolution
Elimination Tool:

A) Frequency of the dominant allele
B) Frequency of the recessive allele
C) Frequency of both alleles
D) Number of both alleles

Due to the presence of _____, the reabsorption of water is increased in the collecting ducts.

NTS 2019
Biology
Homeostasis
Structure and Importance of the Kidney
Elimination Tool:

A) Mg
B) ADH
C) Kidney stones
D) High pH

A/An ______ is an organism that makes ATP by aerobic respiration if oxygen is present, but is capable of switching to fermentation if oxygen is absent.

NTS 2019
Biology
Kingdom Prokaryote
Motility and Nutrition in Bacteria
Elimination Tool:

A) Cellular anaerobe
B) Respiratory anaerobe
C) Obligate anaerobe
D) Facultative anaerobe

All of the following are reflex actions EXCEPT:

NTS 2019
Biology
Coordination and Control
Coordination in Animals
Elimination Tool:

A) Change in the size of the pupil in response to light
B) Swallowing of the bolus
C) Sudden jerky withdrawal of hand when pricked
D) Knees jerk in response to a blow

Because it is capable of dissolving more substances than any other liquid _______ is called the “universal solvent”.

NTS 2019
Biology
Biological Molecules
Water
Elimination Tool:

A) Ethane
B) Alcohol
C) Chloroform
D) Water

Crossing over is an exchange of genes between _______ resulting in a mixture of parental characteristics in offspring.

NTS 2019
Biology
Cell Cycle
Meiosis
Elimination Tool:

A) Sister Chromatids
B) Non-homologous Chromosomes
C) Sex chromosomes
D) Homologous chromosomes

Which disorder among the following CANNOT be detected by amniocentesis?..

NTS 2019
Biology
Reproduction
Sexually Transmitted Diseases
Elimination Tool:

A) Haemophilia
B) Heart defects
C) Tay-Sachs disease
D) Cystic fibrosis

The genome of viruses is composed of

NTS 2019
Biology
Bio-diversity | Variety of Life
Elimination Tool:

A) DNA
B) RNA
C) Protien
D) Either DNA or RNA

As an essential element in living organisms, _______ ion is playing an important role in insulin secretion, the release of neurotransmitters, muscle contraction, and heartbeat regulation.

NTS 2019
Biology
Coordination and Control
Steps Involved in Nervous Coordination
Elimination Tool:

A) Sodium
B) Potassium
C) Calcium
D) Chloride

What type of protein is present in eukaryotic DNA but NOT in prokaryotic DNA?

NTS 2019
Biology
Cell Structure and Function
Prokaryotic and Eukaryotic Cells
Elimination Tool:

A) Receptor protein
B) Glycoprotein
C) Chromatid protein
D) Histone protein

Identify purine and pyrimidines from the following figures

NTS 2019
Biology
Chromosomes and DNA
The Chemical Nature of DNA
Elimination Tool:

A) A and B purines,
C, D, and E pyrimidines.

B) D and B purines,
C, A, and E pyrimidines

C) A and E purines,
C, D, and B pyrimidines.

D) A and C purines,
B, D, and E pyrimidines.

A group of immune cells that mediates the cellular immune response by processing and presenting antigens for recognition of certain other cells or immune systems is called _______.

NTS 2019
Biology
Transport
Elimination Tool:

A) Natural killer cells
B) Interferons
C) Antigen-presenting cells
D) Vaccines

Which one is NOT true for coordination in animals?

NTS 2019
Biology
Coordination and Control
Coordination in Animals
Elimination Tool:

A) Transmission by the nervous system is short-lived, whereas transmission by the hormonal system is long-lasting
B) The nervous system uses electrical impulses to send signals through neurons, whereas the hormonal coordination uses chemical messengers transported in the blood
C) Responses are often permanent in the hormonal system but temporary and reversible in the nervous system
D) In the nervous system secretory chemicals are released in blood while in the hormonal system; secretory chemicals are released in extracellular fluids

Which animals support Darwin’s view of inheritance of desirable variations?

NTS 2019
Biology
Evolution
Elimination Tool:

A) Giraffe
B) Galapagos finches
C) Snake
D) All of the above

In higher animals’ bodies, tissue fluid is isotonic contrary to plants because in plant cells:

NTS 2019
Biology
Cell Structure and Function
Compare the structure of a typical plant and animal cell
Elimination Tool:

A) Cell membrane creates resistance in water uptake
B) Plastids create resistance in water uptake
C) Chlorophyll creates resistance in water uptake
D) Cell wall creates resistance in water uptake

Label the following phenomenon

NTS 2019
Biology
Cell Structure and Function
Plasma Membrane
Elimination Tool:

A) Exocytosis
B) Osmosis
C) Diffusion
D) Phagocytosis.

In gametogenesis, which resultant product is non-functional?

NTS 2019
Biology
Reproduction
Reproduction in Females
Elimination Tool:

A) Spermatogonia
B) Oogonia
C) Polar body
D) Ovum

Arrange the following according to the level of protein structures:

a) lysozyme, b) haemoglobin, c) insulin, d) hairs.,

NTS 2019
Biology
Biological Molecules
Proteins
Elimination Tool:

A) d, a, c, b
B) a, b, c, d
C) d, c, b, a
D) c,d,a,b

In a laboratory, while working on a new species of fish, it is found that the fish has two varieties, red and brown. It was determined by another group of scientísts in another laboratory that brown is a dominant color in this species. If we have brown fish with us in the laboratory, how can we determine whether they are homozygous or heterozygous for the trait?

NTS 2019
Biology
Variation and Genetics
Mendelian Inheritance
Elimination Tool:

A) Breed this fish with a redfish and check Fl generation
B) Breed this fish with a redfish and check F2 generation
C) Breed this fish with a brown fish and check Fl generation
D) Breed this fish with a brown fish and check F2 generation

The following picture is of ______ which separates on the basis of their size and speed in it

NTS 2019
Biology
Biotechnology
Genetic Engineering & its tools
Elimination Tool:

A) Cloning
B) Recombinant DNA technique
C) Cell culture
D) Gel Electrophoresis

As a result of competition among friends, Ahmed eats a lot of pakoras, resulting in a rise of salts in the blood, to compensate______ is triggered in the body.

NTS 2019
Biology
Homeostasis
Thermoregulation
Elimination Tool:

A) Positive feedback
B) Negative feedback
C) Internal feedback
D) External feedback

The passageways of the respiratory system have mucous secreting cells called:

NTS 2019
Biology
Gaseous Exchange
Respiratory System of Man
Elimination Tool:

A) Tracheal cells
B) Goblet cells
C) Surfactant cells
D) Pleural cells

Interphase is a phase of the cell cycle defined only by the absence of _______.

NTS 2019
Biology
Cell Cycle
Introduction to the Cell Cycle
Elimination Tool:

A) Enzymes
B) DNA
C) Replication
D) Cell division

Which one is NOT an involuntary function

NTS 2019
Biology
Support and Movement
Types of Muscles
Elimination Tool:

A) Breathing
B) Pumping of blood
C) Skeletal muscle movement
D) Blinking of eyes

What are a and b in the following picture?

NTS 2019
Biology
Chromosomes and DNA
Types & Composition of Chromosomes
Elimination Tool:

A) Allele and allele
B) Allele and gene
C) Gene and gene
D) Mutation and gene

Plant pigments responsible for red, yellow, and orange colors in many fruits and vegetables are:

NTS 2019
Biology
Bioenergetics
Photosynthetic pigments
Elimination Tool:

A) Chlorophyll A
B) Chlorophyll b
C) Carotenoids
D) Cellulose

Humans are _____ and mostly use ____ thermoregulation.

NTS 2019
Biology
Homeostasis
Thermoregulation
Elimination Tool:

A) Ectotherm, behavioral
B) Endotherm. physiological.
C) Ectotherm. physiological
D) Endotherm, behavioral

What is Molecule “a” in the following picture?

NTS 2019
Biology
Biotechnology
Genetic Engineering & its tools
Elimination Tool:

A) Host cell
B) Donor cell
C) Restriction enzyme
D) Recombinant DNA

Pituitary gland releases ______ hormone and _______ hormone while ovaries produce _______ and progesterone.

NTS 2019
Biology
Reproduction
Reproduction in Females
Elimination Tool:

A) Follicle-stimulating and luteinizing, estrogen
B) Estrogen and follicle-stimulating, luteinizing
C) Luteinizing arid estrogen, follicle-stimulating
D) Follicle-stimulating and estrogen, luteinizing

The complete aerobic oxidation of glucose results in the synthesis of as many ______ Molecules of ATP.

NTS 2019
Biology
Bioenergetics
Respiration Mechanism – Glycolysis to Electron Transport Chain
Elimination Tool:

A) 16
B) 26
C) 36
D) 46

The “d” and “D” alleles are used for lighter and darker skin colour in humans, respectively. By keeping in view the inheritance pattern of skin colour in human beings, choose which combination showing medium skin colour from the following picture:

NTS 2019
Biology
Variation and Genetics
Polygenic Inheritance And Epistasis
Elimination Tool:

A) Column A
B) Column C
C) Row B
D) Row C

Why do some vegetables lose water when salt is applied to them?

NTS 2019
Biology
Transport
Elimination Tool:

A) Due to the less negative water potential of the external environment than the cell.
B) Due to the more negative water potential of the external environment that the cell
C) . Due to the less positive water potential of the external environment than the cell
D) Due to more positive water potential of the external environment than the cell

What does the following picture show?

NTS 2019
Biology
Coordination and Control
Coordination in Animals
Elimination Tool:

A) Motor Neuron
B) Sensory neuron
C) Interneuron
D) Nerve

A group of biologically active molecules formed from amino acids which interact with the surface of the lipid bilayer of cell membranes are called:

NTS 2019
Biology
Cell Structure and Function
Plasma Membrane
Elimination Tool:

A) Integral Proteins
B) Peripheral proteins
C) Cell wall
D) Plasmodesmata

What is the phenomenon shown in the following picture?

NTS 2019
Biology
Growth and Development
Growth and Development in Plants
Elimination Tool:

A) Abscission
B) Senescence
C) Apical dominance
D) Ripening

When a color-blind male marries a normal female, what will be the chances of colorblindness in his grandsons, if his daughter is married to a normal male?

NTS 2019
Biology
Variation and Genetics
Inherited Diseases
Elimination Tool:

A) 16%
B) 25%
C) 50%
D) 100%

Name the type of the following chromosome.

NTS 2019
Biology
Chromosomes and DNA
Types & Composition of Chromosomes
Elimination Tool:

A) Metacentric
B) Submetacentric
C) Telocentric
D) Acrocentric

A cross between a black cat and a tan cat produces a tabby pattern (black and tan fur together). What percent of kittens would have tan fur if a tabby cat is crossed with a black cat?

NTS 2019
Biology
Variation and Genetics
Mendelian Inheritance
Elimination Tool:

A) 100%
B) 50%
C) 25%
D) 0%

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?

NTS 2019
Biology
Man and His Environment
Elimination Tool:

A) Intraspecific competition.
B) Interspecific competition
C) Environmental competition
D) All of the above

In addition to smaller hind limb muscle mass, the mutant “mini Muscle” gene exhibits lower heart rates during physical activity, larger kidneys and livers in mice. This is a very good example of _______.

NTS 2019
Biology
Variation and Genetics
Polygenic Inheritance And Epistasis
Elimination Tool:

A) Epistasis
B) Multiple alleles
C) Codominance
D) Pleiotropy

Which of the following is a type of cell division that plays an important role in evolution?

NTS 2019
Biology
Cell Cycle
Meiosis
Elimination Tool:

A) meiosis
B) mitosis
C) apoptosis
D) amitosis

Cell permeability and transport processes of cell membrane depend upon its ______ component.

NTS 2019
Biology
Cell Structure and Function
Plasma Membrane
Elimination Tool:

A) Phospholipid
B) Carbohydrates
C) Polysaccharide
D) Cellulose

There existed two varieties of female freshwater Mollusks in which some were streamlined and some had a high bulge. Over the generations, male freshwater Mollusks learned that high bulge favors more production of offspring. So they started preferring to mate with females having high bulge as compared to streamlined. Will this affect Hardy Weinberg Equilibrium in the population?

NTS 2019
Biology
Evolution
Elimination Tool:

A) No, it will not affect the Hardy Weinberg equilibrium
B) Yes, it will affect the Hardy Weinberg equilibrium
C) It will help to balance equilibrium
D) The Hardy Weinberg equilibrium doesn’t apply here

Which factor decides what type of variation should be flourished and passed on to the next generations?

NTS 2019
Biology
Evolution
Elimination Tool:

A) Species
B) Population
C) Survival
D) Environment

In semi-conservative replication, which of the following is true regarding the separation of two strands?

NTS 2019
Biology
Chromosomes and DNA
DNA Replication
Elimination Tool:

A) Primary structure is conserved, and secondary structure is disturbed
B) Secondary structure is conserved, and the primary structure is disrupted
C) both the primary and secondary structures are conserved
D) Both the primary and secondary structures are disrupted

Choose the best group from the following to produce transgenic plants in the laboratory:

NTS 2019
Biology
Biotechnology
Genetic Engineering & its tools
Elimination Tool:

A) Group a
B) Group b
C) Group b and c
D) Group c

The second stage of the Prophase of Meiosis, following Leptotene, during which homologous chromosomes begin to pair is called:

NTS 2019
Biology
Cell Cycle
Meiosis
Elimination Tool:

A) Anaphase
B) Zygotene
C) Diplotene
D) Pachytene

What does ‘a’ in the following picture show?

NTS 2019
Biology
Transport
Elimination Tool:

A) Cellular pathway
B) Symplast pathway
C) Apoplast pathway
D) Water pathway

Haemophilia is a sex-linked _____ trait.

NTS 2019
Biology
Variation and Genetics
Inherited Diseases
Elimination Tool:

A) Dominant
B) Codominant
C) Pleiotropic
D) Recessive

Pick the odd one out in the following picture.

NTS 2019
Biology
Chromosomes and DNA
Translation
Elimination Tool:

A) A
B) B
C) C
D) D

Transport of three protons through the ATPase complex is required for the production of one ______.

NTS 2019
Biology
Bioenergetics
Elimination Tool:

A) Sugar molecule
B) NADP molecule
C) ATP molecule.
D) NADPH’ molecule

In sexual reproduction, sex cells contain _____ chromosomes when compared to other cells of the body

NTS 2019
Biology
Chromosomes and DNA
Types & Composition of Chromosomes
Elimination Tool:

A) same
B) half
C) double
D) all of the above

An enzyme is responsible for copying a DNA sequence into an RNA sequence.

NTS 2019
Biology
Chromosomes and DNA
DNA Replication
Elimination Tool:

A) Restriction enzyme
B) Reverse transcriptase.
C) RNA polymerase
D) DNA polymerase

_______ is the stage of mitosis characterized by the physical separation of ________ chromatids.

NTS 2019
Biology
Cell Cycle
Mitosis
Elimination Tool:

A) Interphase. Offspring
B) Telophase, F1 chromatids
C) Metaphase, Homologous
D) Anaphase. Sister

_______ is the storage form of carbohydrate in animals and humans which is equivalent to the _____ in plants.

NTS 2019
Biology
Biological Molecules
Carbohydrates
Elimination Tool:

A) Glycogen, cellulose
B) Starch. cellulose.
C) Glycogen, starch
D) Starch, glycogen

While working in a laboratory, before studying a sample under the microscope, it was immersed in a dye solution to obtain ______.

NTS 2019
Biology
Cell Structure and Function
Techniques used in Cell Biology
Elimination Tool:

A) Magnification
B) Image
C) Match
D) Contrast

Pathway of energy used by muscles converted from food is:

NTS 2019
Biology
Bioenergetics
Support and Movement
Elimination Tool:

A) Food-ATP-creatine phosphate- protein
B) Food-glycogen- ATP-creatine phosphate
C) Food-glycogen-creatine phosphate- ATP
D) Food-protein-creatine phosphate- ATP

Whenever a muscle contracts, a sarcomere can be shortened up to _____ % of its total length.

NTS 2019
Biology
Support and Movement
Ultrastructure & Mechanism of Skeletal Muscle Contraction
Elimination Tool:

A) 15
B) 25
C) 35
D) 45

Synapse formed at the sites where the terminal branches of the axon of a motor neuron conduct a target muscle cell is called:

NTS 2019
Biology
Coordination and Control
Steps Involved in Nervous Coordination
Elimination Tool:

A) Sensory end plate
B) Synapse end plate
C) Motor end plate

D) Postsynaptic membrane

The function of respiratory passage, Cilia is to keep the airways clear of:

NTS 2019
Biology
Gaseous Exchange
Respiratory System of Man
Elimination Tool:

A) Carbon dioxide
B) Oxygen
C) Dust
D) Carbon Monoxide

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.

NTS 2019
Biology
Variation and Genetics
Blood Group System
Elimination Tool:

A) A,O
B) O,A
C) B, O
D) B, A

Which is a correct description of the role of calcium ions in the neuromuscular system?

Biology
Coordination and Control
Steps Involved in Nervous Coordination
Elimination Tool:

A) Exchanged with sodium ions through co-transport channels at axon surfaces during the reestablishment of a resting potential after an action potential.
B) Moved in by diffusion through gated ion channels in pre-synaptic membranes of excitatory neurones causing vesicles to move to pre-synaptic membrane as an impulse arrives.
C) Exchanged with chloride ions at the post-synaptic membrane, in changing membrane potential in inhibitory neurones.
D) Actively pumped out of axons at nodes of Ranvier of myelinated neurones, being the main cause of the potential difference that is maintained during the resting potential.

A/An _______ is mostly a non-protein chemical compound that is required for the protein’s biological activity.

NTS 2019
Biology
Enzymes
Elimination Tool:

A) Active site
B) Substrate
C) Cofactor
D) Enzyme

Which one of the following is NOT a mode of transmission of AIDS?

NTS 2019
Biology
Bio-diversity | Variety of Life
Elimination Tool:

A) Through unsterilized needles
B) Through contact with open wounds
C) Through blood transfusion
D) Through holding hands

During cell division, the spindle fibres get attached to condensing chromosome at a highly differentiated region. This region is called as:

NTS 2019
Biology
Cell Cycle
Mitosis
Elimination Tool:

A) Chromosome
B) Chromocentre
C) Centriole
D) Kinetochore

Genetic equilibrium is a:

NTS 2019
Biology
Evolution
Elimination Tool:

A) Change of allele and gene frequency in a population
B) Stability of allele and gene quantity in a population
C) Change of allele and gene number in a population
D) Stability of allele and gene frequency in a population

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

NTS 2019
Biology
Bioenergetics
Light Independent Mechanism of Photosynthesis
Elimination Tool:

A) Auxins
B) Ribulose bisphosphate
C) Lactoferrin
D) Agrobacterium

Read the code mentioned in the following picture and arrange the sequence of all five codons in which Leucine is at 3rd position. while isoleucine is in 4th position. Keep in mind that CUU is the code for Leucine, AUU for Isoleucine and CAA or glutamine.

NTS 2019
Biology
Chromosomes and DNA
Genetics
Elimination Tool:

A) UAA-AUG-CAA-CUU-AUU
B) AUG-CAA-CUU-AUU-UAA
C) AUU-AUG.CAA.CUU-UAA
D) AUG-UAA -CUU-AUU.CAA

When a plant cell receives a signal for death, it commits suicide by rupturing:

NTS 2019
Biology
Cell Structure and Function
Cytoplasm and Organelles
Elimination Tool:

A) Nucleus
B) Cell membrane
C) Tonoplast
D) Chloroplast

A strand, almost _____ nucleotides long is wrapped around a core of ______ histone proteins to form a structure called a Nucleosome.

NTS 2019
Biology
Chromosomes and DNA
Types & Composition of Chromosomes
Elimination Tool:

A) 200 – 4
B) 200 – 8
C) 200 – 16
D) 200 – 40

The virus can only survive and reproduce inside a:

NTS 2019
Biology
Bio-diversity | Variety of Life
Elimination Tool:

A) Animal Cell
B) Bacterial cell
C) Living cell
D) Non-living cell

Which of the following is NOT true for a gene?

NTS 2019
Biology
Chromosomes and DNA
Genetics
Elimination Tool:

A) A gene is a sequence of nucleotides in DNA.
B) A gene is the basic unit of heredity.
C) A gene codes for a molecule that has a function.
D) A gene expresses to form chromosomes.

The following results of a cross between two individuals shown in the picture is:

Which statement describes the parents of the cross?

NTS 2019
Biology
Variation and Genetics
Mendelian Inheritance
Elimination Tool:

A) One that is homozygous dominant and the other has a dominant phenotype, but has a mother with recessive phenotype
B) One that is homozygous recessive and other has a dominant phenotype, but has a mother with recessive phenotype.
C) One that is homozygous recessive and other has a dominant phenotype, but has a brother with recessive phenotype.
D) One that is homozygous recessive and another has a recessive phenotype. but has a father with a dominant phenotype.

Juxta-medullary nephrons are present only in:

NTS 2019
Biology
Transport
Elimination Tool:

A) Fishes and amphibians
B) Amphibians and birds
C) Birds and mammals
D) Mammals and fishes

Which one of the following options is NOT an example of genetic engineering?

NTS 2019
Biology
Biotechnology
Genetic Engineering & its tools
Elimination Tool:

A) Insulin-producing bacteria
B) Oil eating bacteria
C) Photosynthetic bacteria
D) Metal extracting bacteria

All of the following are the characteristics of the kingdom Protista except:

NTS 2019
Biology
Kingdom Protista
Introduction and history of Protists
Elimination Tool:

A) Members can be photosynthetic
B) Members can be free living
C) Some members move via flagella
D) Some members are shaped like rods and termed bacilli
E) Some members spend part of their life cycle inside insects

A body is hanging from a rigid support by an extensible string of length L. It is struck inelastically by an identical body of mass m with horizontal velocity v =√2gl , the tension in the string increases just after striking by:

NTS 2019
Physics
Circular Motion and Momentum
Law of Conservation of Angular Momentum
Elimination Tool:

A) mg
B) 3mg
C) 2mg
D) None of these

A battery of 12 volts is connected to three resistors of 4 Ohm, 5 Ohm and 3 Ohm joined together in parallel. The current through the 3 – Ohm resistances is _____.

NTS 2019
Physics
Current Electricity
Ohms Law
Elimination Tool:

A) 1.0A
B) 2.5A
C) 3.0A
D) 4.0A

If μ is the permeability of the medium and ∈ permittivity of the medium then the value of √ 1 / μ . ∈. Is equal to ______.

NTS 2019
Physics
Elimination Tool:

A) Planck’s constant
B) Speed of sound waves
C) Speed of ultrasound waves
D) Speed of light

A car 500 kg is travelling at a constant speed of 9 m/s round a curve of 100m. What is the centripetal force?

NTS 2019
Physics
Circular Motion and Momentum
Circular Motion & Momentum
Centripetal Force
Elimination Tool:

A) 205N
B) 305N
C) 405N
D) 505N

In Nuclear Physics the mass defect is referred to _______.

NTS 2019
Physics
Nuclear Physics
Mass Defect And Binding Energy
Elimination Tool:

A) The difference in masses of free neutrons and protons.
B) The difference in masses of free neutrons and bonded nucleus
C) The difference in masses of free nuclear constituent and bonded nucleus
D) Difference between atomic mass and atomic number

Bragg’s Law for measurement of wavelength à. of i-rays, using crystal lattice planes having distance d between each other, for constructive interference for integral multiple of i is.

NTS 2019
Physics
Optics, Nature of Light and Optical Instruments
Wave Front
Elimination Tool:

A) mλ = 2d/ sinθ
B) 2λ =md sinθ
C) mλ = 2d sinθ
D) dλ = 2m sinθ

The sum of Kinetic energy and the Potential energy is always constant provided that _____ .

NTS 2019
Physics
Work, Power & Energy
Interconversion of Potential Energy and Kinetic Energy
Elimination Tool:

A) There is a greater force of friction involved during motion
B) The body is in simple harmonic motion
C) There is less force of friction involved during motion
D) No force of friction involved during motion

The principle of an AC generator is.

NTS 2019
Physics
Alternating Current
A.C. Circuits
Elimination Tool:

A) Lenz’s law
B) Faraday’s Law
C) Self-induction
D) Ampere’s law

When an object is thrown upward, it rises to height h. How high is the object in terms of h, when it has lost ⅓ of its original kinetic energy?:

NTS 2019
Physics
Work, Power & Energy
Interconversion of Potential Energy and Kinetic Energy
Elimination Tool:

A) H/2
B) H/3
C) H/4
D) H/6

If a compressible medium has bulk modulus denoted by B and density denoted by P, then a Newton’s formula for the speed of sound in a medium is _____.

NTS 2019
Physics
Wave Motion and Sound
Elimination Tool:

A) V = √ B / p
B) V = √ B p
C) V = B / p
D) V = √ p / B

A changing current in a coil sets up a changing magnetic field around it which in turn induces an e.m.f. in it. This effect is known as _______

NTS 2019
Physics
Magnetism and Electromagnetic Induction
Mutual and Self Induction
Elimination Tool:

A) Simple induction
B) Mutual induction
C) Self-induction
D) EMF induction

The Bohr’s postulate for stationary orbits of Hydrogen atoms _____. Here m is the mass of the electron, v velocity, r orbital, and h is Planck’s constant.

NTS 2019
Physics
Dawn of Modern Physics
Elimination Tool:

A) mr=nhv/2ℼ
B) mvr=nh/2ℼ
C) mvr=nh/2ℼr
D) mv=nhr/2ℼ

In Young’s double-slit experiment, if d is the separation between two slits 1 is the wavelength of light and θ is the angle of the line from the centre of slits to the point of observation on the screen; then for maxima (bright fringe); the formula is _________.

NTS 2019
Physics
Optics, Nature of Light and Optical Instruments
Young’s Double Slit Experiment
Elimination Tool:

A) 2d sinθ = mλ ; m = 0 .. 2, …
B) dsinθ = mλ ; m = 0, 1, 2, …
C) .sin θ = (m + ½) λ ; m = 0, 1, 2, …..
D) 2msinθ = dλ ; m = 0, 1, 2, ….

A car of mass 1200 kg initially at rest has been accelerated to a speed of 8 m/s in 16 meters. Average acceleration of the car is ______ m/s2? And force is _____ N?

NTS 2019
Physics
Forces and Motion
Newton’s Laws of Motion
Elimination Tool:

A) 1.5 and 1500
B) 2.5 and 2400
C) 3.5 and 3500
D) 2 and 2400

What should the distance of an object from a convex lens of focal length f=10 cm in order to produce an erect image twice as large as the object?

NTS 2019
Physics
Optics, Nature of Light and Optical Instruments
Magnifying and Resolving Power of Optical Instruments
Elimination Tool:

A) 20 cm from the lens
B) 15 cm from the lens
C) 10 cm from the lens
D) 05 cm from the lens

In a step up transformer ________.

NTS 2019
Physics
Alternating Current
Alternating Voltage and Current
Elimination Tool:

A) Vs > Vp while Is > Ip
B) Vs Ip
C) Vs = Vp while Is > Ip
D) Vs > Vp while Is < Ip

The scalar or Dot product of Vectors (3i – 2j + 4k) and (2i + 2j – 3k) is _____.

NTS 2019
Physics
Scalars and Vectors
Product of Two Vectors
Elimination Tool:

A) -9
B) -10
C) -11
D) 10

A car starts from rest and moves with constant acceleration. During the 4th second of its motion, it covers a distance of 21 meters. The acceleration of the car is _____ m.

NTS 2019
Physics
Forces and Motion
Equations of Uniformly Accelerated Motion
Elimination Tool:

A) 04
B) 06
C) 08
D) 16

The internal energy of the system decreases in an adiabatic process. Which of the following must be true regarding this process?

NTS 2019
Physics
Heat and Thermodynamics
First Law of Thermodynamics
Elimination Tool:

A) Heat flows out of the system
B) Work is done by the system
C) Work is done by the surrounding
D) The potential energy of the system is changing

In the Compton Scattering experiment the X-ray wavelength change Δλ is ___________. Here h is Planck constant, m rest mass of electron and θ is angle after scattering.

NTS 2019
Physics
Dawn of Modern Physics
Elimination Tool:

A) Δλ=h/moC(1+ Cosθ)
Show Explanation
B) λ=h/moC(1 – Cos2θ)
Show Explanation
C) Δλ=h/moC(1 – Cosθ)
Show Explanation
D) Δλ=h/moC2(1 + Cosθ)
Show Explanation

If the time interval between the occurrence of two events is measured in a frame with no relative motion in which two events occur. Then the time measured by the observer in a frame moving with relative velocity v is _______.

NTS 2019
Physics
Dawn of Modern Physics
Elimination Tool:

A) Option A
B) Option B
C) Option C
D) Option D

Which statement describes the electric potential difference between two points in the electric field of charge Q?

NTS 2019
Physics
Electrostatics
Elimination Tool:

A) The difference of electric field between the points per unit charge.
B) The ratio of the power dissipated between the points to the mass of charge
C) The work done in moving a test charge between points divided by the magnitude of the test charge.
D) The force required to move a unit positive charge between the points per unit charge.

The necessary condition for Boyle’s law to hold is that the process must be ______.

NTS 2019
Physics
States of Matter – Gases, Liquids and Solids
Gas Laws and General Gas Equation
Elimination Tool:

A) Isobaric
B) Adiabatic
C) Isochoric
D) Isothermal

If a conductor carrying current I is placed in uniform magnetic field B, It experiences a magnetic force F. The direction of this force F.

NTS 2019
Physics
Magnetism and Electromagnetic Induction
Force on a Current Carrying Conductor in a Uniform Magnetic Field
Elimination Tool:

A) + is parallel to current I only
B) Is perpendicular to current I only
C) Is perpendicular to magnetic field B only
D) Is perpendicular to both current I and magnetic field B