What letter comes next in the following series? B D G K P

Chemistry
Physics
Physics
Physics
Physics
Work, Power & Energy
KPK Mock 4
Logical Reasoning
Logical Deduction
A) C
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B) E
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C) B
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D) V
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Blueberries cost more than strawberries.
Blueberries cost less than raspberries.
Raspberries cost mre than strawberries and blueberries.
If the first two statements are true, the third statement is:

Chemistry
Physics
Physics
Physics
Physics
Work, Power & Energy
KPK Mock 4
Logical Reasoning
Critical Thinking
A) True
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B) FALSE
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C) Uncertain
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D) None of these
Show Explanation

The Emporium Mall has more stores than the Pakages Mall.
The Amanah Mall has fewer stores than the Pakages Mall.
The Emporium Mall has more stores than the Amanah Mall.
If the first two statements are true, the third statement is

Chemistry
Physics
Physics
Physics
Physics
Work, Power & Energy
KPK Mock 4
Logical Reasoning
Critical Thinking
A) True
Show Explanation
B) FALSE
Show Explanation
C) Uncertain
Show Explanation
D) None of these
Show Explanation

8, 10, 14, 18, ___ , 34, 50 , 66:

Chemistry
Physics
Physics
Physics
Physics
Work, Power & Energy
KPK Mock 4
Logical Reasoning
Letters and Symbols Series
A) 24
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B) 25
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C) 26
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D) 27
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The delegates in Anatolia could transfer their activities to Istanbul, put Mustafa Kamal’s ideas into practice and yet not longer stand in opposition to the Padishah.

KPK Mock 4
English
Identify errors in sentence
A) In
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B) To
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C) Into
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D) Not longer
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Identify the errors and choose the correct option:

KPK Mock 4
English
Identify errors in sentence
A) Guliver travels was written to Swift.
Show Explanation
B) Guliver travels was written at Swift.
Show Explanation
C) Guliver’s Travels was written by Swift.
Show Explanation
D) Gulivers’ Travel was written by Swift.
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His bad friends will ruin him.[Passive form of the sentence is.]

KPK Mock 4
English
A) He will be ruin by his bad friends.
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B) He is ruined by his bad friends.
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C) He will be ruined by his bad friends.
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D) He is being ruined by his bad friends.
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Choose the correct sentence:

KPK Mock 4
English
Tenses and Sentence Structure
A) I wish I have been a millionaire.
Show Explanation
B) I wish I am being a millionaire.
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C) I wish I were a millionaire.
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D) I wish I was a millionaire.
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Fill in the blank with appropriate article as required.

_____ umbrella is of no avail against a thunderstorm.

KPK Mock 4
English
Fill in the blank
A) The
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B) A
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C) An
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D) No article required
Show Explanation

(Fix this) Please help someone the house is ….life.

KPK Mock 4
English
A) at
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B) in
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C) on
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D) by
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He extolled the virtues of the Russian people. [The underlined word means:]

KPK Mock 4
English
A) Admired
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B) Praised
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C) Censured
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D) Adopted
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Choose the correct sentence from the following options:

KPK Mock 4
English
A) In a short while quiet a large crowd had been collected.
Show Explanation
B) In a short while quite a large crowd had collected.
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C) In a short while quite large crowd had collected.
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D) In a short while quite the large crowd had been collecting.
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‘Get into a soup‘ impllies:

KPK Mock 4
English
A) Face a predicament
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B) Play a game of cards
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C) Swallow a fly in soup
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D) Go for hot spicy soup
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Choose the correct sentence:

KPK Mock 4
English
Tenses and Sentence Structure
A) Huda watched the news on the BBC.
Show Explanation
B) Huda watched the news on the BBC?
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C) Huda watched the news on the bbc.
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D) Huda, watched the news, on the BBC.
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Select the NEAREST CORRECT MEANING of the given word:
CHIVALRY

KPK Mock 4
English
A) Coward
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B) Non-cooperative
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C) Imitating
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D) Gallant
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‘APPRAISE‘ means:

KPK Mock 4
English
A) Tell a story at bed time
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B) Evaluate the quality of
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C) Do shopping in a bazaar
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D) Praise a man out of place
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The rising price of electricity has ________ affected the less fortunate.

KPK Mock 4
English
A) Positively
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B) Not
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C) Adversely
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D) Slowly
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You will be the perfect in charge ____ this group.

KPK Mock 4
English
A) of
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B) to
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C) by
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D) on
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‘Money Grubbing‘ impllies:

KPK Mock 4
English
A) Money saving
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B) Money making
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C) Money hunting
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D) Money spending
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I eagerly look forward _____ seeing you again.

KPK Mock 4
English
A) at
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B) to
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C) on
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D) by
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Choose the correct sentence:

KPK Mock 4
English
A) He throwed it out the window.
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B) He threw it out the window.
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C) He thrown out it the window.
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D) e thrown it out the window.
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‘CRANKY SPOUSE‘ implies:

KPK Mock 4
English
A) A carefully selected loving partner of life
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B) Fussy and bad-tempered wife or husband
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C) Money squandering younger second wife
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D) A device fitted behind the rear seat of a car
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Photo-respiration can generate:

KPK Mock 4
Biology
Bioenergetics
A) 4-ATP
Show Explanation
B) 36-ATP
Show Explanation
C) 32-ATP
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D) NO-ATP
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Deficiency of which element causes yellowing in plants?

KPK Mock 4
Biology
Nutrition
A) Magnesium
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B) Iron
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C) Chlorine
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D) Oxygen
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Body having a meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of which Phylum?

KPK Mock 4
Biology
Kingdom Animalia
Phylums – porifera to chordata
A) Mollusca
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B) Protozoa
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C) Coelenterata
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D) Porifera
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Cell-wall of gram positive bacteria is composed of:

KPK Mock 4
Biology
Kingdom Prokaryote
Size and Structure of Bacteria
A) Glycolipids
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B) Glycoproteins
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C) Lipoproteins
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D) Peptidoglycan
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Cristea of mitochondria are the sites of:

KPK Mock 4
Biology
Cell Structure and Function
A) Electron transport chain
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B) Photophosphorylation
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C) Krebs cycle
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D) Glycolysis
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A cell-wall that is composed of sugar and amino acids is called:

KPK Mock 4
Biology
Cell Structure and Function
A) Murein
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B) Chitin
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C) Lignin
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D) Pectin
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To decrease the salt potential, the guard cells absorb:

KPK Mock 4
Biology
Cell Structure and Function
A) Sodium Ions
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B) Magnesium ions
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C) Potassium ions
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D) Calcium ions
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Dicotyledonous flowers are usually:

KPK Mock 4
Biology
Kingdom Plantae
A) Clmerous
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B) Trimerous
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C) Tetramerous
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D) Pentamerous
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The cross between two dissimillar individuals is called:

KPK Mock 4
Biology
Variation and Genetics
A) Test cross
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B) Interbreeding
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C) Eplstasls
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D) Hybridization
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Which viruses can convert normal cells into cancer cells?

KPK Mock 4
Biology
Variety of Life
A) retrovirus
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B) adenovirus
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C) Poliovirus
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D) All
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Carotenoids pigments are:

KPK Mock 4
Biology
A) Yellow, Red, Green, Blue
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B) Orange, Yellow, Red, Brown
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C) Green, Yellow, Blue, Brown
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D) Blue, Red, Green, Yellow
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Blood pressure towards the brain during rest hours is:

KPK Mock 4
Biology
Transport
A) 850mm/minute
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B) 900mm/minute
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C) 750mm/minute
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D) 730mm/minute
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Oligosaccharides class of carbohydrates contain monosaccharides of about:

KPK Mock 4
Biology
Biological Molecules
A) 2 to 8 units
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B) 2 to 9 units
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C) 2 to 10 units
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D) 2 to 11 units
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In stomach the pepsinogen is synthesized and secreted by:

KPK Mock 4
Biology
Nutrition
A) Mucus cells
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B) Parietal cells
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C) Hormonal cells
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D) Chief cells
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Deficiency of which of the following causes diuresis?

KPK Mock 4
Biology
Coordination and Control
A) LH
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B) ACTH
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C) FSH
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D) ADH
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Dark reaction gets completed by the regeneration of:

KPK Mock 4
Biology
Bioenergetics
A) PGA
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B) PGAL
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C) RUBP
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D) RUBISCO
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Who used puzzle boxes in experiment on animal learning?

KPK Mock 4
Biology
Coordination and Control
A) Pavlove
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B) E.L. Thorndike
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C) Konrad Lorenz
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D) Kohle
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Balantidium coli lives in the intestinal tract of:

KPK Mock 4
Biology
A) Pigs and rats
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B) Pigs and monkeys
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C) Rats and dogs
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D) Cats and sheep
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Hermaphrodite phylum is:

KPK Mock 4
Biology
Variety of Life
A) Annelida
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B) Arthropoda
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C) Echinodermata
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D) Mollusca
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Choose the correct statement.

KPK Mock 4
Biology
Kingdom Animalia
Phylums – porifera to chordata
A) All mammals are viviparous.
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B) All cyclostomes do not possess jaws and paired fins.
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C) All reptiles have a three chambered heart.
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D) All pisces have gills covered by an operculum
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—– is formed by two pairs of light chains, and one pair of heavy chains.

KPK Mock 4
Biology
Support and Movement
Ultrastructure & Mechanism of Skeletal Muscle Contraction
A) actin
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B) myosine
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C) myofibril
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D) Fibroin
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The hormone released by the posterior pitultary that stimulates the contraction of uterine and mammary gland muscles is called:

KPK Mock 4
Biology
Coordination and Control
Endocrine System and its Hormones
A) Prolactin
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B) IH
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C) FSH
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D) Oxytocin
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In mitochondria UGA Codon act to specify

KPK Mock 4
Biology
Chromosomes and DNA
A) Arginine
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B) Glutamine
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C) Tryptophan
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D) Valine
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The presence of microorganisms in drinking water is determined by:

KPK Mock 4
Biology
A) COD
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B) TOC
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C) BOD
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D) TDS
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Which one of the following animals is viviparous?

KPK Mock 4
Biology
Reproduction
Reproduction in Animals
A) Rat
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B) Kangaroo
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C) Duckbilled platypus
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D) Spiny ant eater
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6-NADH can yield:

KPK Mock 4
Biology
Bioenergetics
A) 12-ATP
Show Explanation
B) 38-ATP
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C) 18-ATP
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D) 36-ATP
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Which one of the following animals is filter feeder?

KPK Mock 4
Biology
Nutrition
A) Teeth
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B) Sycon
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C) Fresh water muscle
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D) Jelly fish
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All of the following are co-enzymes except:

KPK Mock 4
Biology
A) NAD
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B) FAD
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C) NADP
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D) ADP
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“80–S” ribosome is formed by the combination of:

KPK Mock 4
Biology
Biological Molecules
A) 30S and 40S
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B) 70S and 10S
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C) 50S and 30S
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D) 60S and 40S
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In which of the following, does the pharynx opens directly into the intestine?

KPK Mock 4
Biology
Gaseous Exchange
A) Planaria
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B) Earthworm
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C) Cockroach
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D) Snail
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The optimum pH of enzyme maltase is:

KPK Mock 4
Biology
A) 4.5
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B) 5.5
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C) 6.1 – 6.8
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D) 6.7 – 7
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A hormone that helps in growing seedless grapes:

KPK Mock 4
Biology
Coordination and Control
A) Auxins
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B) Cytokinins
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C) Ethylene
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D) Gibberellins
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Bile is released from the gall bladder by the action of:

KPK Mock 4
Biology
Nutrition
A) Gastrin
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B) Cholecystokinin
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C) Secretin
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D) Renin
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Erepsin acts upon:

KPK Mock 4
Biology
A) Polypeptides
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B) Carbohydrates
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C) Dipeptides
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D) Fats
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Excited electrons from photo system-II are captured by:

KPK Mock 4
Biology
Bioenergetics
A) PC
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B) PQ
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C) Cytochrome-b
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D) Pentamerous
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What is the approximate diameter of retroviruses?

KPK Mock 4
Biology
Variety of Life
A) 150 nm
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B) 100nm
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C) 200 nm
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D) 250 nm
Show Explanation

Myoglobin is found in:

KPK Mock 4
Biology
Transport
A) Bone
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B) Connective tissue
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C) Muscles
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D) Cartilage
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Cell death due to tissue damage is called:

KPK Mock 4
Biology
Growth and Development
A) Cancer
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B) Apoptosis
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C) Necrosis
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D) Metastasis
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Replication progresses at a rate of about 50 base pairs per second in:

KPK Mock 4
Biology
Chromosomes and DNA
A) Bacteria
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B) Virus
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C) Eukaryote
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D) All of the above
Show Explanation

Messer‘s capsules are the receptors for

KPK Mock 4
Biology
Support and Movement
A) Temperature
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B) Pain
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C) Pressure
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D) Touch
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Polysaccharide cellulose is the building material of:

KPK Mock 4
Biology
Biological Molecules
A) Primary cell-wall
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B) Secondary cell-wall
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C) Middle lamella
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D) Plasma membrane
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Human body thermostat is:

KPK Mock 4
Biology
Homeostasis
A) Medulla
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B) Medulla oblongata
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C) Body fluid
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D) Hypothalamus
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All of the following are triploblastic animals except:

KPK Mock 4
Biology
Growth and Development
A) Annelida
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B) Mollusca
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C) Coelenterata
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D) Echinodermata
Show Explanation

Lobsters belong to class:

KPK Mock 4
Biology
Bio-diversity | Variety of Life
A) Myriapoda
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B) Arychnida
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C) Hexapoda
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D) Crustacean
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Polio immunization vaccine is effective:

KPK Mock 4
Biology
A) 50%
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B) 60%
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C) 80%
Show Explanation
D) 90%
Show Explanation

Which one of the following characteristics is not shared by birds and mammals?

KPK Mock 4
Biology
Kingdom Animalia
Phylums – porifera to chordata
A) Viviparity
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B) Warm blooded nature
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C) Ossified endoskeleton
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D) Breathing using lungs
Show Explanation

A jawless fish lays eggs in fresh water and its ammocoetes larvae after metamorphosis. This fish return to the ocean as ____________

KPK Mock 4
Biology
Kingdom Animalia
Phylums – porifera to chordata
A) Neomyxine
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B) Petromyzon
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C) Eptatretus
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D) Myxine
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Both DNA and RNA are synthesize by the process of:

KPK Mock 4
Biology
Chromosomes and DNA
A) Transcription
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B) Replication
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C) Polymerization
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D) PCR
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An organism that adopts saprophytic mode of nutrition during part of its life is called:

KPK Mock 4
Biology
Nutrition
A) Facultative saprophyte
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B) Facultative parasite
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C) Obligate saprophyte
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D) Obligate parasite
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Chemiosmosis occurs in the:

KPK Mock 4
Biology
Bioenergetics
A) Grana
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B) Stroma
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C) Thylakoids
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D) InterGrana
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Sucrose on hydrolysis yield:

KPK Mock 4
Biology
Biological Molecules
A) Glucose
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B) Glucose and fructose
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C) Glucose and maltose
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D) Maltose and fructose
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Amount of O2 carried by red blood cells is:

KPK Mock 4
Biology
Transport
A) 77%
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B) 90%
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C) 87%
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D) 97%
Show Explanatio

Nucleus was discovered by:

KPK Mock 4
Biology
Chromosomes and DNA
A) Waldyne
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B) T.H. Margan
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C) Robert Brown
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D) Kohler
Show Explanation

The product of light reaction travel from:

KPK Mock 4
Biology
Bioenergetics
Light Dependent Mechanism of Photosynthesis
A) Cristae to stroma
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B) Stroma to grana
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C) Grana to cristae
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D) Grana to stroma
Show Explanation

The pigments of chlorophyll a,b, and carotenoids are present in:

KPK Mock 4
Biology
Bioenergetics
A) Stroma
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B) Grana
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C) Thylakoid membrane
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D) Crista
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Brunner‘s glands are found in:

KPK Mock 4
Biology
Nutrition
A) Stomach
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B) Duodenum
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C) Ileum
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D) Colon
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Mature ovum in human beings is surrounded by:

KPK Mock 4
Biology
Reproduction
A) Plasma membrane
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B) Vitelline membrane
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C) Corona radiata
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D) All of the above
Show Explanation

Rhizobium belong to sub group of bacteria called:

KPK Mock 4
Biology
Kingdom Prokaryote
A) Alpha-Protobacteria
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B) Beta-Protobacteria
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C) Gamma-Protobacteria
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D) Delta-Protobacterla
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The bacteriophage incorporates in the host genome in which phase?

KPK Mock 4
Biology
Variety of Life
A) lysogenic cycle
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B) lytic cycle
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C) both
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D) none
Show Explanation

Umbilical cord contains which of the following?

KPK Mock 4
Biology
Reproduction
Reproduction in Females
A) Pluripotent stem cells
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B) Blood stem cells
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C) Cord blood stem cells
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D) both a and b
Show Explanation

In which of the following is the phenotypic and genotypic ratio the same?

KPK Mock 4
Biology
Variation and Genetics
A) Co-dominance
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B) Over dominance
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C) Epitasis
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D) Incomplete dominance
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The oxygen carrying capacity of haemoglobin in humans when the blood is 100% oxygenated is:

KPK Mock 4
Biology
Transport
A) 19.4 ml
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B) 19.6 ml
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C) 20 ml
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D) 21 ml
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If two heterozygous tall plants are crossed together, the proportion of phenotypically tall plants will be:

KPK Mock 4
Biology
Variation and Genetics
A) 50%
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B) 25%
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C) 75%
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D) 100%
Show Explanation

When the entire body of a bacterium is covered by flagella, such a bacterium is called:

KPK Mock 4
Biology
Variety of Life
A) Atrichous
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B) Lopho-trichous
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C) Lampi trichous
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D) Petri-trichous
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Which of the following fish have 14 pairs of gill slits?

KPK Mock 4
Biology
Gaseous Exchange
A) Dog fish
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B) Lamprey
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C) Cat fish
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D) Ray fish
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How many pairs of cranial nerves are mixed in nature?

KPK Mock 4
Biology
Coordination and Control
A) 02 pairs
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B) 04 pairs
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C) 06 pairs
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D) 08 pairs
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What is the most common fuel of energy for cells?

KPK Mock 4
Biology
Biological Molecules
Carbohydrates
A) Protein
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B) lipid
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C) carbohydrate
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D) none of these
Show Explanation

Biorhythms are called circadian which means about one day so they are also called?

KPK Mock 4
Biology
Coordination and Control
Coordination in Plants
A) diurnal tempo
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B) diurnal time
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C) diurnal rhythms
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D) all of these
Show Explanation

Which is an incorrect statement?

KPK Mock 4
Chemistry
Chemical Bonding
A) The ionic bonds are non-directional in character
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B) The crystals of covalent compounds are made up of molecules
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C) The covalent bonds are rigid and non-directional
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D) Ionic compounds have high melting point and boiling point
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Radiation damages living organism is primarily due to:

KPK Mock 4
Chemistry
Environmental Chemistry
A) Excitation phenomena
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B) Ionization
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C) Photo electric effect
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D) Heating
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E) All of them
Show Explanation

Salts which dissolve in water with evolution of heat. The effect of temperature on their solubility will be:

KPK Mock 4
Chemistry
Chemical Equilibrium
A) Increases with increase in temperature
Show Explanation
B) Decreases with increase in temperature
Show Explanation
C) Solubility does not change
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D) In some cases it increases while in others it decreases
Show Explanation

Which one of the following acids has a strong conjugate base?

KPK Mock 4
Chemistry
Acids, Bases and Salts
A) CH3COOH
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B) HCl
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C) HNO3
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D) H2SO4
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Chemical shift in NMR spectroscopy is expressed as delta (δ) or tan (t) scale. Choose the correct relationship between δ and t:

KPK Mock 4
Chemistry
Experimental Techniques in Chemistry
A) δ = 10 – t
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B) δ = 10 + t
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C) t = δ – 10
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D) t = 10 – δ
Show Explanation

Coal, natural gas and petroleum are generally called:

Chemistry
KPK Mock 4
Chemistry
Environmental Chemistry
A) Fossil fuels
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B) Renewable sources
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C) Infiinite sources
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D) None of the above
Show Explanation

Which is the correct product formed when monohydric alcohol reacts with sodium metal?

Chemistry
KPK Mock 4
Chemistry
Alcohols, Phenols and Ethers
A) Alkene
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B) Sodum alkoxide
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C) Alkane
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D) Ether
Show Explanation

Which one of the following will not undergo dehydrogenation?

KPK Mock 4
Chemistry
Hydrocarbons
Introduction to Hydrocarbons
A) COCH3
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B) (CH 3)2 CHOH
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C) (CH3)3COH
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D) CH3CH2OH
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When 2-Bromo-2-methyl propane undergoes unimolecular elimination reaction, the product obtained will be:

Chemistry
KPK Mock 4
Chemistry
Alkyl Halides and Amines
A) 2-Methyl propane:
Show Explanation
B) 2-Methyl propene:
Show Explanation
C) 2-Methyl-1 propanol
Show Explanation
D) 2-pentanol
Show Explanation

The vectors A and B are such that |A + B| = |A – B|, then the angle between the two vectors is:

ETEA 2014
Physics
A) 0o
Show Explanation
B) 90o
Show Explanation
C) 60o
Show Explanation
D) 180o
Show Explanation

Select molecule that has unpaired electrons in anti-bonding molecular orbitals:

KPK Mock 4
Chemistry
Chemical Bonding
A) N2
Show Explanation
B) Cl2
Show Explanation
C) H2
Show Explanation
D) O2
Show Explanation

NH4OH(aq) ⇌ NH4+(aq)+ OH–(aq)

Consider the above ionization, Ammonium chloride is added to the system.

Select the correct statement.

KPK Mock 4
Chemistry
Chemical Equilibrium
A) The equilibrium will shift to the right
Show Explanation
B) The equilibrium will shift to the left
Show Explanation
C) The equilibrium will remain undisturbed
Show Explanation
D) The equilibrium will be attained quickly
Show Explanation

The atomic number of scandium is 21. What is its ground state electronic configuration?

KPK Mock 4
Chemistry
Atomic Structure
A) 1s22N22p63N23p63d3
Show Explanation
B) 1s22N22p63N23p63d34s1
Show Explanation
C) 1s22N22p63N23p63d34s2
Show Explanation
D) 1s22N22p63N23p63d34p1
Show Explanation

Choose the one which is not the assumption of collision theory of reaction rate:

KPK Mock 4
Chemistry
States of Matter – Gases, Liquids and Solids
A) For chemical reaction to occur molecule/ particles must colloids
Show Explanation
B) For reacting molecules/ Particles must possess a certain minimum amount of energy, the activation of energy
Show Explanation
C) Every collision is not productive
Show Explanation
D) For hydrogen molecule formation from atoms require specific orientation
Show Explanation

Which statement correctly describes a nucleon?

KPK Mock 4
Chemistry
Atomic Structure
A) Any atomic nucleus
Show Explanation
B) A radioactive atomic nucleus
Show Explanation
C) A neutron or a proton
Show Explanation
D) A neutron proton or an electron
Show Explanation

The van der waals equation of state for no-ideal gases differs from the ideal gas law in that it accounts for:

I) The mass of each molecule of the gas.

II) The volume of each molecule of the gas.

III) The attractive forces between molecules of the gas

KPK Mock 4
Chemistry
Chemical Bonding
A) I , II and III
Show Explanation
B) I and II only
Show Explanation
C) I and III only
Show Explanation
D) II and III only
Show Explanation

Choose the correct statement:

DDT an insecticide is considered as:

KPK Mock 4
Chemistry
Industrial Chemistry
A) Very unstable molecule having half-life 1⁄2 to 1 year
Show Explanation
B) Unstable molecule having half-life 2 to 5 years
Show Explanation
C) Stable molecule having half-life 5 to 8 years
Show Explanation
D) Very stable molecule having half-life 10 to 15 years
Show Explanation

Why is the boiling point of n-Pentane about 28‘C higher than that of its 2,2-Dimethylpropane isomer?

KPK Mock 4
Chemistry
Hydrocarbons
Alkanes and Paraffins
A) The area of contact between 2,2-Dimethylpropane is small which results in weak forces of attraction.
Show Explanation
B) 2,2-dimehlprpane molecules repel each other
Show Explanation
C) N-pentane molecules cannot come into closer contact with each other
Show Explanation
D) Shapes of molecules have not effect on boiling point
Show Explanation

Which is the correct statement?

Chemistry
KPK Mock 4
Chemistry
States of Matter – Gases, Liquids and Solids
A) The average kinetic energy of the molecules depends on the volume in which the gas is enclosed
Show Explanation
B) The average kinetic energy of the molecules in the gaseous state is proportional to the pressure.
Show Explanation
C) The average kinetic energy of the molecules in the gaseous state is proportional to the temperature.
Show Explanation
D) All of the above
Show Explanation

The osmotic pressure of dilute solution is given below by relationship:

KPK Mock 4
Chemistry
A) A
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B) B
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C) C
Show Explanation
D) D
Show Explanation

In P type substances, the charge carriers in minorities are:

KPK Mock 4
Chemistry
Industrial Chemistry
A) Holes
Show Explanation
B) Electrons
Show Explanation
C) Protons
Show Explanation
D) Positive ions
Show Explanation

The rate law equation for reaction is given as dx/dt = K[FeCl3][KI]2 the reaction is:

KPK Mock 4
Chemistry
Reaction Kinetics
A) First order
Show Explanation
B) Second order
Show Explanation
C) Third order
Show Explanation
D) Pseudo first order
Show Explanation

Benzene reacts with acetyl chloride in the presence of lewis acid forming:

Chemistry
KPK Mock 4
Chemistry
Carboxylic Acids and its Derivatives
A) Chlorobenzene
Show Explanation
B) Acetophenone
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C) Benzoic acid
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D) Benzophenone
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Select the incorrect statement:

Chemistry
KPK Mock 4
Chemistry
Atomic Structure
A) Molecule may gain electron to form molecular anion.
Show Explanation
B) Molecule may lose electron to form molecular cation
Show Explanation
C) Molecular cations are less abundant than molecular anions
Show Explanation
D) These molecular ions can be formed by passing high energy electron beam through a gas.
Show Explanation

All of the following are micronutrients except:

Chemistry
KPK Mock 4
Chemistry
Environmental Chemistry
A) Iron
Show Explanation
B) Copper
Show Explanation
C) Zinc
Show Explanation
D) Magnesium
Show Explanation

Choose the true statement regarding the reaction given below

2Na(g) + Cl2(g)–> 2NaCl(s)

KPK Mock 4
Chemistry
A) Chloride is oxidized and sodium is reduced
Show Explanation
B) Chlorine acts as an oxidizing agent and sodium as reducing agent
Show Explanation
C) Chlorine acts as a reducing agent and
Show Explanation
D) None of the above
Show Explanation

Waxes are the esters of fatty acids with high molecular weight.

KPK Mock 4
Chemistry
Carboxylic Acids and its Derivatives
A) Monohydroxy alcohols
Show Explanation
B) Dihydroxy alcohol
Show Explanation
C) Trihydroxy alcohol
Show Explanation
D) All of the above
Show Explanation

Pka values of some acids are given below:
Choose the weaker acid?

KPK Mock 4
Chemistry
Carboxylic Acids and its Derivatives
A) HClO4 (–10)
Show Explanation
B) HBr (–9)
Show Explanation
C) H2SO4 (–3)
Show Explanation
D) HCl (–7)
Show Explanation

N2 + 3H2 → 2NH3

In the above reaction, the limiting reagent is:

KPK Mock 4
Chemistry
Chemical Equilibrium
A) N2
Show Explanation
B) H2
Show Explanation
C) Ammonia
Show Explanation
D) None of the above
Show Explanation

The partition coefficients of Iodine distribution between two immiscible liquids, water and carbon (tetrachloride) is given below:

Choose the correct statement about the system:

KPK Mock 4
Chemistry
Solution and Colloids
A) Iodine is extracted from CCl4 layer by water
Show Explanation
B) Iodine is extracted from aqueous layer by CCl4
Show Explanation
C) Iodine is more soluble in water than CCl4
Show Explanation
D) The value of K depends on the amount of Iodine added
Show Explanation

What is true about modern methods used in the determination of the structure of compounds?

Chemistry
KPK Mock 4
Chemistry
Experimental Techniques in Chemistry
A) Accurate but more time consuming
Show Explanation
B) Accurate, rapid but chemicals are used in large amounts
Show Explanation
C) Accurate, rapid but sophisticated and complicated
Show Explanation
D) Accurate, simple and less time consuming
Show Explanation

Hydrolysis of ester in the presence of KOH is called:

KPK Mock 4
Chemistry
Fundamental Principles of Organic Chemistry
A) Estrification
Show Explanation
B) Decarboxylation
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C) Saponification
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D) Neutralization
Show Explanation

Select the ligand which is bidentate and can form chelates:

KPK Mock 4
Chemistry
Solution and Colloids
A) CH3 NH2
Show Explanation
B) PH3
Show Explanation
C) H2O
Show Explanation
D) CH2(NH2)CH2(NH2)
Show Explanation

Choose the correct Statement:

KPK Mock 4
Chemistry
Chemical Equilibrium
A) 2Li7 + 2He4 →5B10 + 1n0 2Li7 + 2He4 →5B9 +0p1
Show Explanation
B) 4Be9 + 2He4 →6C12 + 0n1 4Be9 + 2He4 →6C12 + 1p
Show Explanation

Which one is a polymer substance?

KPK Mock 4
Chemistry
Macromolecules
Polymerization Process
A) Glass
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B) Iron
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C) Plastic
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D) copper
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Select meta directing group of the following?

KPK Mock 4
Chemistry
Fundamental Principles of Organic Chemistry
A) –OH
Show Explanation
B) – NR2
Show Explanation
C) –CN
Show Explanation
D) –OR
Show Explanation

Choose the correct statement:

DDT an insecticide is considered as:

KPK Mock 4
Chemistry
Industrial Chemistry
A) Very unstable molecule having half-life 1⁄2 to 1 year
Show Explanation
B) Unstable molecule having half-life 2 to 5 years
Show Explanation
C) Stable molecule having half-life 5 to 8 years
Show Explanation
D) Very stable molecule having half-life 10 to 15 years
Show Explanation

Which type of isomerism is being exhibited by FCH = CHF?

Chemistry
KPK Mock 4
Chemistry
Fundamental Principles of Organic Chemistry
A) Chain isomerism
Show Explanation
B) Structural isomerism
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C) Geometrical isomerism
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D) Position isomerism
Show Explanation

The statement that heat cannot spontaneously flow from a colder to a hotter body is a result of:

KPK Mock 4
Chemistry
States of Matter
A) Henry‘s law
Show Explanation
B) The first law of thermodynamics
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C) The second law of thermodynamics
Show Explanation
D) The third law of thermodynamics
Show Explanation

Hydrogen bonding do not exist in the molecule of:

Chemistry
KPK Mock 4
Chemistry
Chemical Bonding
A) Hydrogen
Show Explanation
B) Proteins
Show Explanation
C) Carbohydrates
Show Explanation
D) Ammonia
Show Explanation

The proton acceptor is:

KPK Mock 4
Chemistry
Acids, Bases and Salts
A) NH3
Show Explanation
B) BF3
Show Explanation
C) HCL
Show Explanation
D) H*
Show Explanation

The order of reducing power of halide ion is:

KPK Mock 4
Chemistry
Periodicity in Elements
A) I–1> Br–>Cl–> F–
Show Explanation
B) F–>Cl–> Br–> l–
Show Explanation
C) l–1>Cl–> F–> Br–
Show Explanation
D) Br–>Cl–> l–> F–
Show Explanation

Kp = Kc (RT)△n in the equation if △n < 0 then: KPK Mock 4 Chemistry Reaction Kinetics A) Kp = Ke Show Explanation B) KpKe Show Explanation D) Kp< 0 Show Explanation

Which statement is incorrect about ionization energy?

Chemistry
KPK Mock 4
Chemistry
Chemical Bonding
A) Ionization energy depends upon the magnitude of nuclear charge
Show Explanation
B) Ionization energy depends upon the atomic radius
Show Explanation
C) Ionization energy depends upon the shielding effect
Show Explanation
D) Ionization energy does not depend upon the penetration effect of the inner orbital
Show Explanation

Shown below are portion of orbital diagrams representing the ground state electronic configuration of certain elements. Which of them obeys the Pauli‘s exclusion principle and Hund‘s rules?

KPK Mock 4
Chemistry
Chemical Bonding
A) Option A
Show Explanation
B) Option B
Show Explanation
C) Option C
Show Explanation
D) Both option B and C are correct
Show Explanation

Choose the correct order of reactivity of alkyl halides?

KPK Mock 4
Chemistry
Alkyl Halides and Amines
A) R – 1 > R – Br > R – Cl > R – F
Show Explanation
B) R – Br > R – I > R – F > R – Cl
Show Explanation
C) R – F > R – Cl> R – Br > R – l
Show Explanation
D) R – Cl> R – l > R – Br > R – l
Show Explanation

During a experiment, one measured the mass of a mosquito and found it to be 1.20 × 10–5 Kg. The numbers of significant figures in this case are:

KPK Mock 4
Chemistry
Stoichiometry
A) Five
Show Explanation
B) One
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C) Two
Show Explanation
D) Three
Show Explanation

Stable electronic configuration of Cu(29) is:

KPK Mock 4
Chemistry
Atomic Structure
A) [Ar] 4S2 3d4
Show Explanation
B) [Ar] 4S0 3d10
Show Explanation
C) [Ar] 4S1 3d10
Show Explanation
D) [Ar] 4S2 3d7 4p2
Show Explanation

Ruther ford‘s scattering experiment demonstrates:

KPK Mock 4
Chemistry
Analytical Chemistry
A) The existance of X-rays
Show Explanation
B) The existence of negative particles
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C) The mass to charge ratio of electron
Show Explanation
D) The nuclear model of the atom
Show Explanation

A neutron with K.E equal to 0.04ev is called?

KPK Mock 4
Chemistry
A) Slow neutron
Show Explanation
B) Thermal neutron
Show Explanation
C) Fast neutron
Show Explanation
D) Both (a) and (b)
Show Explanation

The heat of combustion of hydrocarbon is very useful source of heat and power, considering the combustion reaction given below.
CH4(g) +O2(g) →CO2(o) + 2H2O
△H for the reaction is.

KPK Mock 4
Chemistry
Thermochemistry
Heat Capacity and Calorimetry
A) △H = 213 kcal/mole
Show Explanation
B) △H= 231 kcal/mole
Show Explanation
C) △H= 426 kcal/mole
Show Explanation
D) △H= 312 kcal/mole
Show Explanation

Semi-conductor materials have:

KPK Mock 4
Chemistry
Industrial Chemistry
A) Ionic bond
Show Explanation
B) Covalent bond
Show Explanation
C) Mutual bond
Show Explanation
D) Metallic bond
Show Explanation

Vinyl acetate monomer is prepared by the reaction of acetaldehyde and acetic-anhydride. The catalyst employed is:

KPK Mock 4
Chemistry
Periodicity in Elements
A) FeCI3
Show Explanation
B) AL2O3
Show Explanation
C) V2O5
Show Explanation
D) Cr2O3
Show Explanation

What are the values of principal quantum number and azimuthal quantum number for the last electron in Chlorine atom?

KPK Mock 4
Chemistry
Atomic Structure
A) 1.6
Show Explanation
B) 1.3
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C) 3.1
Show Explanation
D) 6.1
Show Explanation

Choose the correct Statement:

KPK Mock 4
Chemistry
Experimental Techniques in Chemistry
A) The most direct and accurate method for determining atomic masses uses mass spectroscopy.
Show Explanation
B) The indirect but accurate method for determining molecular masses uses mass spectroscopy.
Show Explanation
C) Collision between the electrons and the atoms produces negative ions by absorption of electrons by atoms or moecules.
Show Explanation
D) The first application of the mass spectroscopy was the demonstration to detect various isotopes of Argon.
Show Explanation

Excess of ethanol is heated with conc: sulphuric acid keeping the temperature 140°C. The product formed is

KPK Mock 4
Chemistry
Carboxylic Acids and its Derivatives
A) C2H5OC2H5 + H2O
Show Explanation
B) C2 H4
Show Explanation
C) C2 H5 OH
Show Explanation
D) C2 H6
Show Explanation

The rotational inertia of a disk about its axis is 0.70 Kg. m2. When a 2.0-kg weight is added to itsrim, 0.40m from the axis, the rotational inertia becomes:

Chemistry
KPK Mock 4
Physics
Circular Motion & Momentum
A) 0.38 Kg – m2

Show Explanation
B) 0.54 kg – m2
Show Explanation
C) 0.86 kg – m2

Show Explanation
D) 1.0 kg – m2

Show Explanation

Newton first law of motion is also known as:

Chemistry
Physics
Physics
Physics
Physics
Work, Power & Energy
Newton’s Laws of Motion
KPK Mock 4
Physics
Forces and Motion
A) Law of inertia
Show Explanation
B) Law of electromagnetism
Show Explanation
C) Law of universal gravity
Show Explanation
D) Law of conservation of momentum
Show Explanation

During adiabatic expansion internal energy decreases by 2J, then work done in this process is

Chemistry
Physics
Physics
KPK Mock 4
Physics
Heat and Thermodynamics
First Law of Thermodynamics
A) 2J
Show Explanation
B) 1J
Show Explanation
C) -1J
Show Explanation
D) -2J
Show Explanation

The phase angle between two points in a medium is 4pi/5. What is the separation between these two points if the wavelength of the wave is 5m.

Chemistry
Physics
Physics
Physics
Physics
Work, Power & Energy
Reflection of Waves and Phase Change
KPK Mock 4
Physics
Wave Motion and Sound
A) 5/4 m
Show Explanation
B) 4pi m
Show Explanation
C) 2 m
Show Explanation
D) 10 m
Show Explanation

What are the units of the ratio: specific latent heat of vaporization of water/ specific heat capacity of water

Chemistry
Physics
Physics
KPK Mock 4
Physics
Heat and Thermodynamics
First Law of Thermodynamics
A) K
Show Explanation
B) 1/K
Show Explanation
C) K^2
Show Explanation
D) no unit
Show Explanation

The internal energy of a fixed case of an ideal gas depends on:

Chemistry
Physics
Physics
KPK Mock 4
Physics
A) Pressure, but not volume or temperature.
Show Explanation
B) Temperature, but not pressure or volume
Show Explanation
C) Volume, but not pressure or temperature.
Show Explanation
D) Pressure and temperature, but not volume.
Show Explanation

Can we see magnetic flux lines?

Chemistry
KPK Mock 4
Physics
Magnetism and Electromagnetic Induction
Magnetic Flux and Flux Density
A) Yes
Show Explanation
B) No
Show Explanation
C) Depends on strength of field
Show Explanation
D) Only when the field is large
Show Explanation

A block moves in uniform circular motion because a cord tied to the block is anchored at the centre of a circle. Then the power of the force exerted on the block by the cord is:

Chemistry
Physics
Physics
Physics
Physics
Work, Power & Energy
KPK Mock 4
Physics
Circular Motion & Momentum
A) Positive
Show Explanation
B) Negative
Show Explanation
C) Zero
Show Explanation
D) Infinite
Show Explanation

A wheel starts from rest and has an angular acceleration of 4.0 rad/s2. When it has made 10 rev its angular velocity is:

Chemistry
Physics
KPK Mock 4
Physics
Circular Motion & Momentum
A) 16 rad/s
Show Explanation
B) 22 rad/s
Show Explanation
C) 32 rad/s
Show Explanation
D) 250 rad/s
Show Explanation

A particle, held by a string whose other end is attached to a fixed point C, moves in a circle on a horizontal frictionless surface. If the string is cut, the angular momentum of the particle about the point: C.

Chemistry
Physics
Physics
Physics
KPK Mock 4
Physics
A) Increases
Show Explanation
B) Decreases
Show Explanation
C) Does not change
Show Explanation
D) Changes direction but not magnitude
Show Explanation

Which of the following is closest to a yard:

Chemistry
KPK Mock 4
Physics
A) 0.01 m
Show Explanation
B) 0.1 m
Show Explanation
C) 1 m
Show Explanation
D) 100 m
Show Explanation

Statements and Actions:

Statement The Management of School M has decided to give free breakfast from next academic year to all the students in its primary section through its canteen even though they will not get any government grant.

Courses of Action

(I) The school will have to admit many poor students who will seek admission for the next academic year.

(II) The canteen facilities and utensils have to be checked and new purchases to be made to equip it properly.

(Ill) Funds will have to be raised to support the scheme for years to come.

Chemistry
Physics
Physics
PMC Practice 26
Logical Reasoning
Course of Action
A) Only II and Ill follows
Show Explanation
B) Only Ill and I follow
Show Explanation
C) Only I and II follow
Show Explanation
D) Only I follows
Show Explanation

The phase angle between two points in a medium is 4pi/5. What is the separation between these two points if the wavelength of the wave is 5m.

Chemistry
Physics
Physics
Physics
Physics
Work, Power & Energy
KPK Mock 4
Physics
Wave Motion and Sound
A) 5/4 m
Show Explanation
B) 4pi m
Show Explanation
C) 2 m
Show Explanation
D) 10 m
Show Explanation

Drops X and Y, of the same oil, remained stationary in air in the same electric field. After the field was switched off, X fell more quickly than Y. which deduction can be made?

Chemistry
Physics
Physics
KPK Mock 4
Physics
Electrostatics
A) X had a greater charge than Y
Show Explanation
B) Y ha a greater chrge than X
Show Explanation
C) Parallel but opposite
Show Explanation
D) Parallel, opposite and folded spirally.
Show Explanation

Three equivalent resistors connected in parallel have equivalent resistance R/3. When they are connected in series then the equivalent resistance is:

Chemistry
Physics
KPK Mock 4
Physics
Current Electricity
A) 3R
Show Explanation
B) R/3
Show Explanation
C) R
Show Explanation
D) 2R
Show Explanation

The phase angle between two points in a medium is 4pi/5. What is the separation between these two points if the wavelength of the wave is 5m.

Chemistry
Physics
Physics
KPK Mock 4
Physics
Wave Motion and Sound
A) 5/4 m
Show Explanation
B) 4pi m
Show Explanation
C) 2 m
Show Explanation
D) 10 m
Show Explanation

Spectral lines is like a _____ of absorbed or emission energy in a spectrum

Chemistry
KPK Mock 4
Physics
Atomic Spectra
Spectrum of Hydrogen Atom
A) charged pattern
Show Explanation
B) fingerprint pattern
Show Explanation
C) discharged pattern
Show Explanation
D) None of these
Show Explanation

Moon is revolving around the earth, work done by the earth on the moon is

Chemistry
Physics
Physics
Physics
Physics
Work, Power & Energy
KPK Mock 4
Physics
Work, Power & Energy
A) positive
Show Explanation
B) zero
Show Explanation
C) negative
Show Explanation
D) none of these
Show Explanation

1 kilowatt =____________ Watts.

Chemistry
Physics
Physics
Physics
Physics
Work, Power & Energy
KPK Mock 4
Physics
Work, Power & Energy
A) 2000 watts
Show Explanation
B) 1000 watts
Show Explanation
C) 300 watts
Show Explanation
D) 100 Watts
Show Explanation

A wire of resistance 4Ω is bent in the form of a circle. The resistance between the ends of any diameter is:

Chemistry
Physics
Physics
Physics
Physics
Work, Power & Energy
KPK Mock 4
Physics
A) 1 Ω
Show Explanation
B) 2 Ω
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C) 4 Ω
Show Explanation
D) 8 Ω
Show Explanation

Which of the given formulae would be used to calculate the wavelength of an electron? Given its velocity(v), its mass (m) and constant h:

Chemistry
Physics
Physics
KPK Mock 4
Physics
A) v = f.λ
Show Explanation
B) λ = h / mv
Show Explanation
C) s = d/t
Show Explanation
D) p = λ x h
Show Explanation

Which radiation passes through black body:

Chemistry
Physics
Physics
Physics
Physics
Work, Power & Energy
KPK Mock 4
Physics
Dawn of Modern Physics
A) Alpha
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B) Gamma
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C) Beta
Show Explanation
D) All
Show Explanation

If system changes from a state Pl Vl to P2V2 by two paths then quantity which remains unchanged is

Chemistry
KPK Mock 4
Physics
Heat and Thermodynamics
Internal Energy
A) dQ
Show Explanation
B) dW
Show Explanation
C) dQ-dW
Show Explanation
D) dQ+dW
Show Explanation

The energy stored in a charged capacltor is given by:

Chemistry
Physics
Physics
KPK Mock 4
Physics
A) 1/2 CV2
Show Explanation
B) 1/2 QV
Show Explanation
C) 1/2 m v2
Show Explanation
D) Both A and B
Show Explanation

In case of half wave rectification the resistance of diode during negative half of A.C is:

Chemistry
Physics
Physics
Physics
Physics
Work, Power & Energy
KPK Mock 4
Physics
Alternating Current
A.C. Circuits
A) Very high
Show Explanation
B) Very low
Show Explanation
C) A few ohms
Show Explanation
D) Negative
Show Explanation

For ideal step up transformer Ps_Pp.

Chemistry
KPK Mock 4
Physics
Magnetism and Electromagnetic Induction
Transformers
A) equal to
Show Explanation
B) greater than
Show Explanation
C) less than
Show Explanation
D) none of these
Show Explanation

An electron has charge-e- and mass m. A proton has charge e and mass 1840m. A “Proton volt” is equal to:

Chemistry
KPK Mock 4
Physics
A) 1 eV
Show Explanation
B) 1840 eV
Show Explanation
C) (1/1840) eV
Show Explanation
D) √1840 eV
Show Explanation

The deuterium atom has __ quarks

Chemistry
Physics
Physics
Physics
Physics
Work, Power & Energy
KPK Mock 4
Physics
Nuclear Physics
Composition of Atomic Nuclei
A) 3
Show Explanation
B) 6
Show Explanation
C) 9
Show Explanation
D) 12
Show Explanation