Choose the correct sentence:

Atomic Spectra
PMC Practice 1
English
Tenses and Sentence Structure
A) However, it didn’t take long for others to jump on board.
Show Explanation
B) However it didn’t take long for others to jump on board.
Show Explanation
C) However, it didn’t take long for others to jump on board?
Show Explanation
D) However. It didn’t take long for others to jump on board.
Show Explanation

Thank you. You’ve been very thorough this time.

Atomic Spectra
PMC Practice 1
English
A) Ideal
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B) Cruel
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C) Kind
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D) Glad
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From the following which word does not belong to the others:

Atomic Spectra
PMC Practice 1
Logical Reasoning
Critical Thinking
A) Index
Show Explanation
B) Book
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C) Glossary
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D) Chapter
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Select the option which fits appropriately in the blank:

It will _____ me a lot of money.

Atomic Spectra
PMC Practice 1
English
Fill in the blank
A) Costs
Show Explanation
B) Cost
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C) Costed
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D) Is costing
Show Explanation

I borrowed __ pencil from your pile of pencils and pens.

Atomic Spectra
PMC Practice 1
English
A) A
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B) An
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C) The
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D) No Article
Show Explanation

Select the option which fits appropriately in the blank:

We shall _________ there for a week.

Atomic Spectra
PMC Practice 1
English
Fill in the blank
A) Be going
Show Explanation
B) Has been gone
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C) Has going
Show Explanation
D) Been going
Show Explanation

Statement
In a specific area of a country an acute famine have appeared COURSE OF ACTION:
I. Major facilities of water and food should be provided straight away in that area.

II. Financial support should be given to bothered individuals to the from the Government.

Atomic Spectra
PMC Practice 1
Logical Reasoning
Course of Action
A) Both of them follows
Show Explanation
B) None of them follow
Show Explanation
C) Only I follows
Show Explanation
D) Only II follows
Show Explanation

Choose the correct sentence.

Atomic Spectra
PMC Practice 1
English
A) He always loved sweets, chocolates, biscuits and cakes.
Show Explanation
B) He always loved, sweets chocolates, biscuits and cairns.
Show Explanation
C) He always loved sweets, chocolates, biscuits and,cakes.
Show Explanation
D) He always loved sweets, chocolates biscuits and cakes.
Show Explanation

Select the option which fits appropriately in the blank:

The gardner will have _________ the flowers.

Atomic Spectra
PMC Practice 1
English
Fill in the blank
A) Plucked
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B) Pluck
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C) Plucks
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D) None of these options are correct
Show Explanation

STATEMENTS:
I. The dialogue between Jinnah and Gandhi failed.
II. Indian National Congress and Muslim League tried to join hands, so they will be united.

Atomic Spectra
PMC Practice 1
Logical Reasoning
Cause and Effect
A) Statement I is the cause and statement II is its effect.
Show Explanation
B) Statement II is the cause and statement I is its effect.
Show Explanation
C) Both statements I and II are independent causes
Show Explanation
D) Both statements I and II are the effects of independent cause.
Show Explanation

Select the option which fits appropriately in the blank:

Annie and her brothers __________ at school.

Atomic Spectra
PMC Practice 1
English
Fill in the blank
A) Is
Show Explanation
B) Are
Show Explanation
C) Are being
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D) Have
Show Explanation

Select the option which fits appropriately in the blank:

I am in London this Summer, I ___________ English.

Atomic Spectra
PMC Practice 1
English
Fill in the blank
A) Learn
Show Explanation
B) Learns
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C) Am learning
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D) Learning
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Select the nearest correct meaning of the given word:

Bewildered

Atomic Spectra
PMC Practice 1
English
Key Vocabulary
A) Confused
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B) Impressed
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C) Stunned
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D) Intrigued
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Select the option which fits appropriately in the blank:

My father often ______ here.

Atomic Spectra
PMC Practice 1
English
Fill in the blank
A) Come
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B) Came
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C) Comes
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D) Coming
Show Explanation

Either my mother or my father ______ coming to the meeting.

Atomic Spectra
PMC Practice 1
English
A) Is
Show Explanation
B) Are
Show Explanation
C) Are being
Show Explanation
D) Has
Show Explanation

Select the option which fits appropriately in the blank:

Dan __________ a lot of friends.

Atomic Spectra
PMC Practice 1
English
Fill in the blank
A) Have
Show Explanation
B) Has
Show Explanation
C) Is having
Show Explanation
D) Having
Show Explanation

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.
III. Funds will have to be raised to support the scheme for years to come.

Atomic Spectra
PMC Practice 1
Logical Reasoning
Course of Action
A) Only II and III follows
Show Explanation
B) Only III and I follow
Show Explanation
C) Only I and II follow
Show Explanation
D) Only I follows
Show Explanation

Complete the series A2, B4, C8, D16, E?

Atomic Spectra
PMC Practice 1
Logical Reasoning
Letters and Symbols Series
A) 32
Show Explanation
B) 34
Show Explanation
C) 36
Show Explanation
D) 38
Show Explanation

Statements: – A > B, B ≥ C, C C (II) A = C

Atomic Spectra
PMC Practice 1
Logical Reasoning
Logical Deduction
A) Only I is true
Show Explanation
B) Only II is true
Show Explanation
C) Either I or II true
Show Explanation
D) Neither I nor II is true
Show Explanation

The light we see is:

PMC 2021 Tested
Physics
Atomic Spectra
Atomic Spectra
A) None of these
Show Explanation
B) Infrared
Show Explanation
C) Visible
Show Explanation
D) Ultraviolet
Show Explanation

By changing the current through the same coil, an emf is induced in it, the process is known as:

NTS 2015 SMBBMC
Physics
Magnetism and Electromagnetic Induction
Mutual and Self Induction
A) Rectification
Show Explanation
B) Mutual induction
Show Explanation
C) Self induction
Show Explanation
D) Simple induction
Show Explanation

Transformer is a device which steps up or steps down the input:

PMC 2020
Physics
Magnetism and Electromagnetic Induction
Transformers
A) Current
Show Explanation
B) Voltage
Show Explanation
C) Energy
Show Explanation
D) Power
Show Explanation

Emf = -N(ΔΦ/Δt) is according to

PMC Sample 2
Physics
Magnetism and Electromagnetic Induction
Faradays and Lenz Law and Induced EMF
A) Ampere’s Law
Show Explanation
B) Faraday’s Law
Show Explanation
C) Lenz’s Law
Show Explanation
D) Both B and C
Show Explanation

Bright Lines in pattern show:

PMC Practice 5
Physics
Atomic Spectra
Spectrum of Hydrogen Atom
A) Absorption
Show Explanation
B) Emission
Show Explanation
C) Release
Show Explanation
D) Free particle
Show Explanation

When a transformer is connected to 120-volt ac, it supplies 3000 V to a device. The current through the secondary winding then is o.06 A and the current through the primary is 2 A. The number of turns in the primary winding is 400. The number of turns in the secondary winding is:

NTS 2016 DUHS & JSMU
Physics
Magnetism and Electromagnetic Induction
Transformers
A) 16
Show Explanation
B) 30
Show Explanation
C) 1000
Show Explanation
D) 2000
Show Explanation
E) 10000
Show Explanation

Did I say anything to make you angry?

Atomic Spectra
PMC Practice 1
English
A) Declarative
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B) Imperative
Show Explanation
C) lnterrogative
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D) Exclamatory
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In transmission from grid station, power losses are minimized by:

PMC 2020
Physics
Magnetism and Electromagnetic Induction
Transformers
A) Decreasing current
Show Explanation
B) Decreasing resistance.
Show Explanation
C) Increasing resistance
Show Explanation
D) Increasing voltage
Show Explanation

Devices that consume electrical energy in the external circuit of generator are known as

PMC Sample 2
Physics
Magnetism and Electromagnetic Induction
A.C. and D.C. Generator
A) appliances
Show Explanation
B) machines
Show Explanation
C) motors
Show Explanation
D) load
Show Explanation

A flat coil of wire having 5 turns has an inductance, L. The inductance of a similar coil having 20 turns is:

NUMS 2017
Physics
Magnetism and Electromagnetic Induction
Transformers
A) 16L
Show Explanation
B) L/4
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C) uL
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D) L
Show Explanation

The ratio of wavelength of last line of Balmer series and last line of lymen series is

PMC Sample 2
Physics
Atomic Spectra
A) 2
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B) 1
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C) 4
Show Explanation
D) 0.05
Show Explanation

Transformer works on the principle of:

NTS 2016 SMBBMC
Physics
Magnetism and Electromagnetic Induction
Transformers
A) Self induction
Show Explanation
B) Mutual magnetic induction
Show Explanation
C) Electrostatics
Show Explanation
D) Mutual charging
Show Explanation

According to Bohr, the orbits in which electrons revolve around the nucleus are:

PMC Practice 4
Chemistry
Atomic Spectra
A) Oval
Show Explanation
B) Elliptical
Show Explanation
C) Cylindrical
Show Explanation
D) Circular
Show Explanation

Atomic spectra is a ______ spectra.

PMC Practice 18
Physics
Atomic Spectra
Atomic Spectra
A) Continuous
Show Explanation
B) Discrete
Show Explanation
C) Both options A and B
Show Explanation
D) None of these options are correct
Show Explanation

Extraterrestial waves are also called:

PMC 2021 Tested
Physics
Atomic Spectra
Atomic Spectra
A) Alpha rays
Show Explanation
B) Cosmic rays
Show Explanation
C) Gamma rays
Show Explanation
D) Beta rays
Show Explanation

Which colour of heat shows highest temperature?

Physics
PMC Practice 16
Atomic Spectra
Spectrum of Hydrogen Atom
A) Red
Show Explanation
B) Blue
Show Explanation
C) Black
Show Explanation
D) Orange
Show Explanation

Motional e.m.f induced in a coil is dependent on?

PMC Practice 1
Physics
Magnetism and Electromagnetic Induction
Induced EMF and Induced Current
A) Magnetic field
Show Explanation
B) Orientation
Show Explanation
C) Length
Show Explanation
D) All of these
Show Explanation

What is the number of spectral series in the hydrogen spectrum?

PMC 2021 Tested
Physics
Atomic Spectra
Atomic Spectra
Spectrum of Hydrogen Atom
A) Four
Show Explanation
B) Three
Show Explanation
C) Five
Show Explanation
D) One
Show Explanation

A circuit in which there is a current of 10 amperes is changed so that the current falls to zero in 0.5 seconds. If an average e.m.f. of 400 volts is induced, what is the self-inductance of the circuit?

NTS 2015 DUHS and JSMU
Physics
Magnetism and Electromagnetic Induction
Mutual and Self Induction
A) 10 Henrys
Show Explanation
B) 20 Henrys
Show Explanation
C) 30 Henrys
Show Explanation
D) 40 Henrys
Show Explanation

LASER is an acronym for:

UHS 2012
Physics
Atomic Spectra
Atomic Spectra
Laser
A) Light amplification by stimulated emission of radiation
Show Explanation
B) Light annihilation by stimulated emission of radiation
Show Explanation
C) Light amplitude of stimulated emission of radiation
Show Explanation
D) Light amplification by stimulated emission of radio
Show Explanation

The Lenz’s law refers to

PMC Sample 2
Physics
Magnetism and Electromagnetic Induction
Faradays and Lenz Law and Induced EMF
A) induced current
Show Explanation
B) induced potential
Show Explanation
C) motional emf
Show Explanation
D) all of these
Show Explanation

What does CAT stand for in X-ray technology?

UHS 2013
Physics
Atomic Spectra
Atomic Spectra
Inner Shell Transitions And Characteristic X-rays
A) Capacitor Amplifier Transistor
Show Explanation
B) Computerized Axial Tomography
Show Explanation
C) Cathode Anode Technique
Show Explanation
D) Current Amplification Technology
Show Explanation

The formula for the Paschen series for the Hydrogen spectrum is _______.

NTS 2019
Physics
Atomic Spectra
Spectrum of Hydrogen Atom
A) 1/λ=Rh(1/22 – 1/n2 ) n=3,4,5
Show Explanation
B) 1/λ=Rh(1/42- 1/n2) n=2,3,4,5
Show Explanation
C) 1/λ=Rh(1/42- 1/n2 ) n=5,6,7
Show Explanation
D) 1/λ=Rh(1/32- 1/n2 ) n=4,5,6
Show Explanation

Choose the correct sentence.

Atomic Spectra
PMC Practice 1
English
A) Does your tram leaw before eight o’clock?
Show Explanation
B) Does your train leave before eight clock?
Show Explanation
C) Does your train leave before eight o’clock?
Show Explanation
D) Do your train leave before eight o’clock?
Show Explanation

For a 100% efficient step down transformer

PMC Sample 2
Physics
Magnetism and Electromagnetic Induction
Transformers
A) voltage in primary and secondary are equal
Show Explanation
B) current in primary and secondary are equal
Show Explanation
C) input power is same as the output power
Show Explanation
D) output power is zero
Show Explanation

The units of planks constant are the same as that of :

ETEA 2017
Physics
Atomic Spectra
Atomic Spectra
Bohrs Model of the Hydrogen Atom
A) Angular Momentum
Show Explanation
B) Work
Show Explanation
C) Force
Show Explanation
D) Torque
Show Explanation

If the ionization energy of a hydrogen atom is 13.6 eV, its ionization potential will be:

PMC Sample 1
Physics
Atomic Spectra
De-Broglie Waves and Hydrogen Atom
A) 13.6 V
Show Explanation
B) 136.0 V
Show Explanation
C) 3.4 V
Show Explanation
D) None of these options are correct
Show Explanation

X-ray is the reverse process of:

PMC Practice 10
Physics
Atomic Spectra
Inner Shell Transitions And Characteristic X-rays
A) Pair production
Show Explanation
B) Compton effect
Show Explanation
C) Photoelectric effect
Show Explanation
D) A & B are correct
Show Explanation

X rays are similar in nature to:

NUMS 2018
Physics
Atomic Spectra
Inner Shell Transitions And Characteristic X-rays
A) Cathode rays
Show Explanation
B) Canal rays
Show Explanation
C) Gamma rays
Show Explanation
D) Beta rays
Show Explanation

Which of the following series lie in the visible region?

ETEA 2018
Physics
Atomic Spectra
Atomic Spectra
Spectrum of Hydrogen Atom
A) Lyman
Show Explanation
B) Paschen
Show Explanation
C) Balmer
Show Explanation
D) Pfund
Show Explanation

The work done in emitting the electron from an atom or from a molecule is

Atomic Spectra
AKU Question Bank
Physics
Atomic Spectra
A) ionization energy
Show Explanation
B) excitation energy
Show Explanation
C) excitation potential
Show Explanation
D) Ionization potential
Show Explanation

X-rays are used to measure?

PMC Practice 8
Physics
Atomic Spectra
Inner Shell Transitions And Characteristic X-rays
A) Fractures
Show Explanation
B) Temperature
Show Explanation
C) Blood pressure
Show Explanation
D) All of these
Show Explanation

Choose the correct spelling of the word:

Atomic Spectra
PMC Practice 1
English
Grammar and Punctuation
A) Something
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B) Somthing
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C) Sumthing
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D) Sumthin
Show Explanation

Which rays need medium to travel?

PMC Practice 10
Physics
Atomic Spectra
A) X-rays
Show Explanation
B) Beta rays
Show Explanation
C) Gamma rays
Show Explanation
D) No radiation need medium to travel
Show Explanation

The wavelength of the spectral lines in the hydrogen atom’s emission and absorption spectra are predicted by

Atomic Spectra
AKU Question Bank
Physics
Atomic Spectra
A) Rutherford’s model
Show Explanation
B) Maxwell’s model
Show Explanation
C) Dalton’s mode
Show Explanation
D) Bohr’s model
Show Explanation

On hydrogen atom spectrum, series of spectral lines which fall within visible region, is:

Atomic Spectra
FMDC 2018
Chemistry
Atomic Spectra
Spectrum of Hydrogen Atom
A) Lymen series
Show Explanation
B) Balmer Series
Show Explanation
C) Paschen series
Show Explanation
D) Bracket series
Show Explanation

The wavelength associated with electrons is equal to that of:

Atomic Spectra
FMDC 2018
Physics
Atomic Spectra
Inner Shell Transitions And Characteristic X-rays
A) Visible spectrum
Show Explanation
B) X rays
Show Explanation
C) Radio waves
Show Explanation
D) Infrared waves
Show Explanation

Which of the following shows H-bonding?

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
A) CH₃CH₂OH
Show Explanation
B) CH₃-O-CH₃
Show Explanation
C) CH₃CH₂Cl
Show Explanation
D) All of these
Show Explanation

A conductor of length L is moved across a magnetic field. Due to this activity, a potential difference appears across the ends of the conductor. This type of potential difference is termed as:

NTS 2018
Physics
Magnetism and Electromagnetic Induction
Motion of a Charged Particle in an Electric and Magnetic Field
A) Self Induction
Show Explanation
B) Mutual Induction
Show Explanation
C) Motional EMF
Show Explanation
D) Electrostatic potential
Show Explanation

The value of R (the gas constant) is

NTS 2019
Chemistry
States of Matter – Gases, Liquids and Solids
Gas Laws and General Gas Equation
A) 0.0821dm3 atm k mol-1.
Show Explanation
B) 803143 Nmk-Imole
Show Explanation
C) 0.0821 dm3 atm k-I mol-1
Show Explanation
D) 8.3143 dm3 atm-k-I mol
Show Explanation

HF has a higher boiling point than HCl because of:

PMC 2021 Tested
Chemistry
States of Matter – Gases, Liquids and Solids
Boiling Point and Vapor Pressure
A) Dipole-dipole interactions
Show Explanation
B) Ion-dipole interactions
Show Explanation
C) Hydrogen bonding
Show Explanation
D) London-dispersion forces
Show Explanation

Which one of the following has the highest density?

PMC 2021 Tested
Chemistry
States of Matter – Gases, Liquids and Solids
States of Matter
A) Liquids
Show Explanation
B) Solids
Show Explanation
C) Plasma
Show Explanation
D) Gases
Show Explanation

The relationship between P and 1/V is:

PMC 2021 Tested
Chemistry
States of Matter – Gases, Liquids and Solids
Gas Laws and General Gas Equation
A) Both are independent of each other
Show Explanation
B) Indirect
Show Explanation
C) Direct
Show Explanation
D) Dynamic
Show Explanation

The expression PV = nRT represents the:

NUMS 2020
Chemistry
States of Matter – Gases, Liquids and Solids
Gas Laws and General Gas Equation
A) Dalton’s Law
Show Explanation
B) Avogadro’s Law
Show Explanation
C) General gas equation
Show Explanation
D) Van der Waals equation
Show Explanation

– ROR is the nucleophile of

NTS 2011
Chemistry
Aldehydes and Ketones
Physical Properties of Aldehydes And Ketones
A) Alcohols
Show Explanation
B) Esters
Show Explanation
C) Cyanides
Show Explanation
D) Ethers
Show Explanation

Which of the following solids is isotropic?

PMC Practice 6
Chemistry
States of Matter – Gases, Liquids and Solids
Isomorphism and Polymorphism
A) Ionic solids
Show Explanation
B) Molecular solids
Show Explanation
C) Amorphous solids
Show Explanation
D) Metallic solids
Show Explanation

Which of the following reactions is NOT shown by ketones?

NTS 2018
Chemistry
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
A) Reaction with HCN
Show Explanation
B) Reaction with Fehling solution
Show Explanation
C) Reaction with NaHSO3
Show Explanation
D) Reaction with 2,4-dinitrophenyl-hydrazine
Show Explanation

Primary Alcohol is produced by reactions of Grignard’s reagent with _________ followed by hydrolysis in an acidic medium.

NTS 2011
Chemistry
Alcohols, Phenols and Ethers
A) Carbon dioxide
Show Explanation
B) Formaldehyde
Show Explanation
C) Acetaldehyde
Show Explanation
D) Ketone
Show Explanation

Carbonyl group undergoes:

NUMS 2019 Reconduct
Chemistry
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
A) Electrophilic addition reaction
Show Explanation
B) Nucleophilic addition reaction
Show Explanation
C) Electrophilic substitution reaction
Show Explanation
D) Nucleophilic substitution reaction
Show Explanation

London forces are present in

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
Properties of Liquids and Water
A) ammonia
Show Explanation
B) water
Show Explanation
C) kerosene oil
Show Explanation
D) HCl
Show Explanation

Select one which is alcohol.

UHS 2018
Chemistry
Alcohols, Phenols and Ethers
A) CH3- CH2- Br
Show Explanation
B) CH3- O – CH3
Show Explanation
C) CH3COOH
Show Explanation
D) CH3- CH2- OH
Show Explanation

Atoms in solids are

PMC Sample 3
Chemistry
States of Matter – Gases, Liquids and Solids
Types of Solids
A) Loosely Packed
Show Explanation
B) In random motion
Show Explanation
C) Excited
Show Explanation
D) Closely packed
Show Explanation

Hybridization of carbon in -CHO group is:

NUMS 2019 Reconduct
Chemistry
Aldehydes and Ketones
Identification and Uses of Carbonyl Compounds
A) sp
Show Explanation
B) sp2
Show Explanation
C) sp3
Show Explanation
D) dsp
Show Explanation

NaCl and diamond are found in which of the following crystalline forms?

PMC 2021 Tested
Chemistry
States of Matter – Gases, Liquids and Solids
Properties of Crystalline Solids
A) NaCl is cubic and diamond is rhombic
Show Explanation
B) NaCl is rhombic and diamond is cubic
Show Explanation
C) Both are cubic
Show Explanation
D) Both are rhombic
Show Explanation

All the collisions between the particles of gases are elastic in nature. What is meant by “Elastic Collisions”?

UHS 2019
Chemistry
States of Matter – Gases, Liquids and Solids
Kinetic Molecular Theory Of Gases
A) No change in the total kinetic energy
Show Explanation
B) The velocity of the molecules changes
Show Explanation
C) No change in potential energy during the collisions
Show Explanation
D) No change in mass during the collisions
Show Explanation

What is the temperature at which the volume of gas is said to be zero?

NTS 2015 SMBBMC
Chemistry
States of Matter – Gases, Liquids and Solids
Non Ideal Behaviour Of Gases
A) 0 C
Show Explanation
B) 4 C
Show Explanation
C) -273.16 C
Show Explanation
D) -173.16 C
Show Explanation

Phenol is a(n) ________ liquid?

PMC Sample 1
Chemistry
Alcohols, Phenols and Ethers
A) Dense
Show Explanation
B) Hard
Show Explanation
C) Deliquescent
Show Explanation
D) Intermittent
Show Explanation

Non-protein part of conjugated protein is called _____.

PMC Practice 10
Chemistry
Macromolecules
Synthetic Polymers and Biopolymers
A) Coenzyme
Show Explanation
B) Co-factor
Show Explanation
C) Prosthetic group
Show Explanation
D) None
Show Explanation

Why is phenol more acidic than Alcohol?

PMC Practice 3
Chemistry
Alcohols, Phenols and Ethers
A) Due to the presence of resonance in phenol
Show Explanation
B) Due to the absence of resonance in alcohol
Show Explanation
C) Both Options A and B are correct
Show Explanation
D) Because in phenol, hydrogen is attached to oxygen,
Show Explanation

The alcohols which are resistant to oxidation reactions are:

PMC Practice 3
Chemistry
Alcohols, Phenols and Ethers
A) Primary alcohols
Show Explanation
B) Secondary alcohol
Show Explanation
C) Tertiary alcohol
Show Explanation
D) All of above options are correct
Show Explanation

A liquid crystalline state exists between two temperatures i.e melting temperature and ____ temperature.

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
Liquid Crystals
A) boiling
Show Explanation
B) freezing
Show Explanation
C) clearing
Show Explanation
D) all of these
Show Explanation

What is the freezing point of water?

PMC 2021 Tested
Chemistry
States of Matter – Gases, Liquids and Solids
Properties of Liquids and Water
A) -2 °C
Show Explanation
B) -4 °C
Show Explanation
C) None of these
Show Explanation
D) 0 °C
Show Explanation

According to the general gas equation, density of an ideal gas depends upon:

PMC 2020
Chemistry
States of Matter – Gases, Liquids and Solids
Gas Laws and General Gas Equation
A) Pressure
Show Explanation
B) Temperature
Show Explanation
C) Molar Mass
Show Explanation
D) All of these
Show Explanation

Electrons are emitted in the production of X-rays by:

NUMS 2016
Physics
Atomic Spectra
Inner Shell Transitions And Characteristic X-rays
A) Conduction
Show Explanation
B) Convection
Show Explanation
C) Thermionic emission
Show Explanation
D) None of these
Show Explanation

A diabetic person’s exhaled breath contains propanone. A student tries to test the diabetes by asking the person to bubble the reagent with his exhaled breath. Which of the following reagents would give a positive result?

NUMS 2019 Cancelled
Chemistry
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
A) Aqueous Bromine
Show Explanation
B) Fehling’s reagent
Show Explanation
C) Tollen’s reagent
Show Explanation
D) Alkaline aqueous iodine
Show Explanation

Which of the following does not give iodoform test?

NUMS 2014
Chemistry
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
A) Ethanol
Show Explanation
B) Ethanal
Show Explanation
C) Acetophenone
Show Explanation
D) Benzophenone
Show Explanation

Which of the following exerts the lowest vapour pressure?

PMC 2021 Tested
Chemistry
States of Matter – Gases, Liquids and Solids
Boiling Point and Vapor Pressure
A) Chloroform
Show Explanation
B) Methanol
Show Explanation
C) Water
Show Explanation
D) Ethanol
Show Explanation

Phenol reacts with calcium carbonate and evolve ________?

PMC Practice 1
Chemistry
Alcohols, Phenols and Ethers
A) H2 gas
Show Explanation
B) CO2 gas
Show Explanation
C) O2
Show Explanation
D) None of these
Show Explanation

In the Lucas test, tertiary alcohols form an oily layer of alkyl halide _________.

PMC Practice 2
Chemistry
Alcohols, Phenols and Ethers
A) On heating
Show Explanation
B) Immediately
Show Explanation
C) After 5-10 minutes
Show Explanation
D) After 20 minutes
Show Explanation

Which of the following is/are allotrope(s) of Sulphur?

PMC 2021 Tested
Chemistry
States of Matter – Gases, Liquids and Solids
Properties of Crystalline Solids
A) Monoclinic S and Rhombic S
Show Explanation
B) Rhombic S
Show Explanation
C) Triclinic S
Show Explanation
D) Monoclinic S
Show Explanation

Disruption of the protein structure by heating, changes in pH, and by chemicals is called __________.

PMC Practice 15
Chemistry
Macromolecules
Synthetic Polymers and Biopolymers
A) Coagulation
Show Explanation
B) Dehydration
Show Explanation
C) Denaturation
Show Explanation
D) None of these options are correct
Show Explanation

The biochemical process used in the synthesis of alcohol in the presence of yeast is called ___________.

PMC Practice 3
Chemistry
Alcohols, Phenols and Ethers
A) Respiration
Show Explanation
B) Photosynthesis
Show Explanation
C) Fermentation
Show Explanation
D) Aerobic respiration
Show Explanation

The value of S.T.P for 1 mole of any ideal gas is:

NUMS 2020
Chemistry
States of Matter – Gases, Liquids and Solids
Real and Ideal Gas Equation
A) 273.16 K and 1 atm
Show Explanation
B) 0 C & 1 mm Hg
Show Explanation
C) 273.16 C & 1 atm
Show Explanation
D) 0 K & 1 atm
Show Explanation

The internal energy of an ideal gas depends upon its:

NTS 2016 DUHS & JSMU
Chemistry
States of Matter – Gases, Liquids and Solids
Non Ideal Behaviour Of Gases
A) Molecular size
Show Explanation
B) Pressure only.
Show Explanation
C) Volume only
Show Explanation
D) Temperature only
Show Explanation

How are carboxylic acids formed from alcohol?

PMC Practice 1
Chemistry
Alcohols, Phenols and Ethers
A) Hydrolysis
Show Explanation
B) Reduction
Show Explanation
C) Oxidation
Show Explanation
D) Protonation
Show Explanation

Which of the following is not a derivative of benzene?

PMC Practice 1
Chemistry
Alcohols, Phenols and Ethers
A) Pyrrole
Show Explanation
B) Furan
Show Explanation
C) Thiophene
Show Explanation
D) All
Show Explanation

NaCl and CsF have same geometry because they have the same __ ?

PMC Practice 11
Chemistry
States of Matter – Gases, Liquids and Solids
Properties of Crystalline Solids
A) Ionization energy
Show Explanation
B) Ionic radius ratio
Show Explanation
C) Electron affinity
Show Explanation
D) Bond length
Show Explanation

The test used to distinguish among primary, secondary, and tertiary alcohols is:

NUMS 2017
Chemistry
Alcohols, Phenols and Ethers
A) 2,4 – DNPH test
Show Explanation
B) Tollens test
Show Explanation
C) Lucas Test
Show Explanation
D) Fehling solution test
Show Explanation

A graph between volume and temperature gives a straight line which cuts the temperature axis at:

NUMS 2020
Chemistry
States of Matter – Gases, Liquids and Solids
Gas Laws and General Gas Equation
A) 0 C
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B) 273 C
Show Explanation
C) 546 C
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D) -273 C
Show Explanation

Which one of the following has the weakest intermolecular forces?

PMC 2021 Tested
Chemistry
States of Matter – Gases, Liquids and Solids
States of Matter
A) Plasma
Show Explanation
B) Liquids
Show Explanation
C) Solids
Show Explanation
D) Gases
Show Explanation

Dehydration of ethanol at 100 oC in the presence of concentrated H2SO4 gives:

NUMS 2019 Reconduct
Chemistry
Alcohols, Phenols and Ethers
A) Ethene
Show Explanation
B) Ethane
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C) Ethyne
Show Explanation
D) Ether
Show Explanation

Which of the following has the lowest density?

PMC 2021 Tested
Chemistry
States of Matter – Gases, Liquids and Solids
States of Matter
A) None of these
Show Explanation
B) Solids
Show Explanation
C) Gases
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D) Liquids
Show Explanation

lsoenzymes comes from _________.

PMC Practice 15
Chemistry
Macromolecules
Synthetic Polymers and Biopolymers
A) Same sources
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B) Different organisms
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C) Same organisms
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D) None of these options are correct
Show Explanation

Ketone reacts with Grignard reagent to form ______ in acidic media?

NTS 2015 SMBBMC
Chemistry
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
A) Tertiary alcohol
Show Explanation
B) Isopropyl alcohol
Show Explanation
C) Primary alcohol
Show Explanation
D) Carboxylic acid
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High molecular mass organic compounds that upon hydrolysis, yield amino acids are called __________.

PMC Practice 15
Chemistry
Macromolecules
Synthetic Polymers and Biopolymers
A) Carbohydrates
Show Explanation
B) Lipids
Show Explanation
C) Proteins
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D) DNA
Show Explanation

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
A) Isobaric
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B) Adiabatic
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C) Isochoric
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D) Isothermal
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Hemoglobin is an example of which protein?

PMC Practice 10
Chemistry
Macromolecules
Synthetic Polymers and Biopolymers
A) Transport proteins
Show Explanation
B) Structural proteins
Show Explanation
C) Genetic proteins
Show Explanation
D) Regulatory proteins
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At which temperature does water have maximum density?

PMC Practice 7
Chemistry
States of Matter – Gases, Liquids and Solids
Properties of Liquids and Water
A) 2°C
Show Explanation
B) 4°C
Show Explanation
C) 0°C
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D) <0°C Show Explanation

Amino acids in proteins are held together by __ ?

PMC Practice 11
Chemistry
Macromolecules
Synthetic Polymers and Biopolymers
A) Peptide bond
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B) Phosphodiester linkage
Show Explanation
C) H-bonding
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D) Ether linkage
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The activator of the phosphatase enzyme is _________.

PMC Practice 3
Chemistry
Macromolecules
Synthetic Polymers and Biopolymers
A) Mn2+
Show Explanation
B) Mg2+
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C) Zn2+
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D) None of these options are correct
Show Explanation

Amorphous solids turns into glass like state from rubber like state, this is called

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
Types of Solids
A) transition
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B) crack transition
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C) glass transition
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D) all of these
Show Explanation

Carbon dioxide is an example of?

PMC Practice 4
Chemistry
States of Matter – Gases, Liquids and Solids
Types of Solids
A) Ionic Solid
Show Explanation
B) Metallic Solid
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C) Molecular Solid
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D) Covalent Solid
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Which of the following elements is not usually present in all proteins?

PMC Practice 3
Chemistry
Macromolecules
Synthetic Polymers and Biopolymers
A) Carbon
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B) Hydrogen
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C) Nitrogen
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D) Sulphur
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_______ is a device which makes use of mutual induction for stepping up or down an alternating e.m.f.

NTS 2012
Physics
Magnetism and Electromagnetic Induction
A) Sonometer
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B) Transformer
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C) Ammeter
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D) Voltmeter
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Which of the following alcohol does not get oxidized when it reacts with K₂Cr₂O₇/H₂SO₄?

PMC Sample 2
Chemistry
Alcohols, Phenols and Ethers
A) CH₃C(CH₃)₂OH
Show Explanation
B) CH₃CH(CH₃)OH
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C) CH₃OH
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D) C₂H₅OH
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Which type of movement is shown by the atoms of the solid?

PMC Practice 6
Chemistry
States of Matter – Gases, Liquids and Solids
Types of Solids
A) Translational motion
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B) Vibrational motion
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C) Rotational motion
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D) Linear motion
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Enzymes speed up the reaction up to:

PMC Practice 3
Chemistry
Macromolecules
Synthetic Polymers and Biopolymers
A) 1020
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B) 2010
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C) 1030
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D) 1510
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Enzymes that bring about exchange of functional group is called __?

PMC Practice 12
Chemistry
Macromolecules
Synthetic Polymers and Biopolymers
A) Oxidoreductase
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B) Hydrolases
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C) Ligases
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D) Transferases
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Which enzyme causes the hydrolysis of fats?

PMC Practice 10
Chemistry
Macromolecules
Synthetic Polymers and Biopolymers
A) Urease
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B) Lipase
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C) Maltase
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D) Protease
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Proteoses enzyme & peptones belong to which type of protein?

PMC Practice 11
Chemistry
Macromolecules
Synthetic Polymers and Biopolymers
A) Simple protein
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B) Derived proteins
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C) Conjugated proteins
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D) All of these
Show Explanation

Molecular solid may be_____?

PMC 2021 Tested
Chemistry
States of Matter – Gases, Liquids and Solids
Types of Solids
A) Neutral crystals
Show Explanation
B) Polar crystals
Show Explanation
C) Polar and non-polar crystals
Show Explanation
D) Non-polar crystals
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The alcohols in which the carbon which is attach to the OH group is further attach with two carbon atoms is called as?

PMC Sample 2
Chemistry
Alcohols, Phenols and Ethers
A) Primary alcohols
Show Explanation
B) Secondary alcohols
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C) Tertiary alcohols
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D) None of these
Show Explanation

The general formula for an aldehyde is:

NTS 2010
Chemistry
Aldehydes and Ketones
Introduction to Aldehydes and Ketones
A) R-OH
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B) R-COOH
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C) R-CO-R
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D) R-X
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E) R-CHO
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The unit for Van der Waals constant ‘b’ is?

PMC Practice 10
Chemistry
States of Matter – Gases, Liquids and Solids
Real and Ideal Gas Equation
A) mol dm-3
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B) dm3
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C) m3 mol-1
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D) m3 mol
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London dispersion forces are the only forces present among?

PMC Practice 10
Chemistry
States of Matter – Gases, Liquids and Solids
Properties of Liquids and Water
A) Atoms of helium in gaseous state at high temperature
Show Explanation
B) Molecules of water
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C) Molecules of solid iodine
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D) Molecules of HCl gas
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Which of the following is radially symmetrical and possesses nematocysts?

Biology
Kingdom Animalia
A) Porifera
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B) Coelenterates
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C) Mollusca
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D) Amphibians
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Functions of the brainstem include all of the following EXCEPT:

NUMS 2018
Biology
Coordination and Control
Central Nervous System
A) Integration of righting reflexes
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B) Autonomic control for respiration
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C) Equilibrium and posture regulation
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D) Initiation of voluntary movements
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Evolutionary relationships amongst species are reflected in their:

NUMS 2016
Biology
Evolution
A) DNA and proteins
Show Explanation
B) RNA and proteins
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C) DNA and genes
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D) DNA and RNA
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Which of the following diseases is sexually transmitted?

PMC 2020
Biology
Bio-diversity | Variety of Life
A) Tuberculosis
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B) AIDS
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C) Dengue Fever
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D) Cholera
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The trachea is also termed as the:

PMC Practice 5
Biology
Gaseous Exchange
Respiratory System of Man
A) Voice box
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B) Epiglottis
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C) Bronchi
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D) Windpipe
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Deficient production of hormones by adrenal glands results in:

NTS 2011
Biology
Coordination and Control
Endocrine System and its Hormones
A) Cushing’s syndrome
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B) Addison’s disease
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C) Diabetes Mellitus
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D) Goiter
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Neurons are cells adapted for the rapid transmission of electrical impulses. To do this, they have long thin processes called:

PMC 2020
Biology
Coordination and Control
Steps Involved in Nervous Coordination
A) Axons
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B) Dendrites
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C) Myelin sheath
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D) Schwann cell
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The oxygen-binding protein present in skeletal muscles is:

NUMS 2017
Biology
Gaseous Exchange
Transport of Gases
A) Globin
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B) Glycogen
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C) Myo Glycogen
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D) Myoglobin
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The wings of birds and the forelegs of a horse are _____ structures.

NUMS 2016
Biology
Evolution
A) Analogous
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B) Homologous
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C) Vestigial
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D) Evolutionary convergent
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Which of the following are composed of proteins only which contain the information that codes for their own replication?

NUMS 2019 Reconduct
Biology
Bio-diversity | Variety of Life
A) Virus
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B) Virion
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C) Prions
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D) Capsule
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The low levels of Surfactant produced by Alveolar epithelium causes:

UHS 2018
Biology
Gaseous Exchange
Respiratory Disorders
A) Respiratory distress syndrome
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B) Emphysema
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C) Bronchitis
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D) Asthma
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The viruses are:

NTS 2011
Biology
Bio-diversity | Variety of Life
A) Cellular
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B) Prokaryotes
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C) Non-cellular
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D) Eukaryotes
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Analogous organs provide evidence for __________ evolution:

Biology
Evolution
A) Convergent
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B) Parallel
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C) Divergent
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D) Adaptive
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Which of the following correctly explains the structure of myoglobin:

NUMS 2015
Biology
Gaseous Exchange
Transport of Gases
A) 4 polypeptide chains + 4 heme portions
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B) 4 polypeptide chains + 1 heme portions
Show Explanation
C) 1 polypeptide chains + 4 heme portions
Show Explanation
D) 1 polypeptide chains + 1 heme portions
Show Explanation

This theory says that “mitochondria and chloroplasts are, in effect, ancient bacteria which now live inside the larger cells”:

PMC 2020
Biology
Evolution
A) Darwin’s theory of evolution
Show Explanation
B) Lamarckism
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C) Neo – darwinism
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D) Endosymbiont theory
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A _____ is a junction between two neurons or between a motor neuron and a muscle cell:

PMC 2020
Biology
Coordination and Control
Steps Involved in Nervous Coordination
A) Impulse
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B) Synapse
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C) Axon
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D) Cleft
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First infectious disease against which effective method of prevention developed was a _______:

NUMS 2020
Biology
Bio-diversity | Variety of Life
A) Bacterial disease
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B) Viral disease
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C) Protozoan disease
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D) Viroid disease
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Which of the following is NOT a viral disease?

NTS 2018
Biology
Bio-diversity | Variety of Life
A) AIDS
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B) Malaria
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C) Influenza
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D) Chickenpox
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The structural and functional unit of the lungs is:

PMC Practice 2
Biology
Gaseous Exchange
Respiratory System of Man
A) Alveoli
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B) Trachea
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C) Bronchiole
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D) Bronchus
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Which of the following concepts is attributed to Lamarck?

NUMS 2014
Biology
Evolution
A) Struggle for existence
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B) Survival of the fittest
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C) Inheritance of acquired characters
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D) Cells come from pre-existing cells
Show Explanation

Which of the following is derived from Latin word VENUME which means poisonous?

NUMS 2018
Biology
Bio-diversity | Variety of Life
A) Bacteria
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B) Fungi
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C) Virus
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D) Malaria
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Which of the following theories or evolution can best explain the vestigial organs.

NUMS 2014
Biology
Evolution
A) Darwinism
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B) Lamarckism
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C) Natural selection
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D) Special creation
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How many meninges cover the human brain?

NTS 2014
Biology
Coordination and Control
Central Nervous System
A) 5
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B) 4
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C) 3
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D) 2
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Which brain portion is responsible for controlling body coordination?

NUMS 2020
Biology
Coordination and Control
Central Nervous System
A) Medulla
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B) Amygdala
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C) Cerebellum
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D) Pons
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The spinal nerves are functionally:

NUMS 2016
Biology
Coordination and Control
Central Nervous System
A) Sensory nerves
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B) Motor nerves
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C) Mixed nerves
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D) Unknown
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Coelom is a cavity lined by:

NUMS 2016
Biology
Kingdom Animalia
Classification according to Coelem
A) Mesoderm
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B) Endoderm
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C) Epiderm
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D) Ectoderm
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The _____ may be a cell, neuron ending or an organ that receives the stimulus.

NUMS 2019 Reconduct
Biology
Coordination and Control
Peripheral Nervous System
A) Effector
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B) Receptor
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C) Adopter
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D) Stimuli
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Out of the 13 types of finches collected by Darwin from Galapagos:

Biology
Evolution
A) All were unique to individual islands
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B) Some were distributed on two or more islands
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C) Some were unique to individual islands
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D) Majority were unique to individual islands
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Breathing is considered as a:

PMC Practice 1
Biology
Gaseous Exchange
Introduction to Gaseous Exchange
A) Chemical process
Show Explanation
B) Biochemical process
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C) Mechanical process
Show Explanation
D) Both A and B
Show Explanation

Norepinephrine:

NUMS 2019 Cancelled
Biology
Coordination and Control
Endocrine System and its Hormones
A) Is released by sympathetic fibers
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B) Is released by parasympathetic fibers
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C) Decrease the heart rate
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D) Decrease blood pressure
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Which one of the following is a genetic disorder in which abnormally thick mucus is produced in the lungs and other parts of the body?

NUMS 2020
Biology
Gaseous Exchange
Respiratory Disorders
A) Lung cancer
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B) Chronic bronchitis
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C) Cystic fibrosis
Show Explanation
D) Emphysema
Show Explanation

Amphibians live on:

NUMS 2016
Biology
Kingdom Animalia
Phylums – porifera to chordata
A) Water
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B) Water and land
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C) Land
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D) Air
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An amphibian’s heart has ______ chambers:

NUMS 2016
Biology
Kingdom Animalia
Phylums – porifera to chordata
A) Two
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B) Three
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C) Four
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D) Five
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What part of the brain integrates sensory information such as pain and temperature?

NUMS 2018
Biology
Coordination and Control
Central Nervous System
A) Forebrain
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B) Midbrain
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C) Hindbrain
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D) Spinal cord
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Which of the following statements is correct about the respiratory pigments?

UHS 2018
Biology
Gaseous Exchange
Transport of Gases
A) Myoglobin and Haemoglobin has higher affinity for nitrogen
Show Explanation
B) Cyanide and Haemoglobin has a low affinity for oxygen
Show Explanation
C) Myoglobin has more affinity for oxygen as compared to haemoglobin
Show Explanation
D) Albumin, Globulin and Globin proteins are present in respiratory pigments
Show Explanation

Major coordinating centre for sensory and motor signaling is:

NUMS 2018
Biology
Coordination and Control
Central Nervous System
A) Thalamus
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B) Cerebrum
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C) Hypothalamus
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D) Cerebellum
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Lamarck is best known for his theory of:

NUMS 2016
Biology
Evolution
A) Inheritances
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B) Dominance
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C) Inheritance of acquired characteristics
Show Explanation
D) All of the above
Show Explanation

Diaphragm is a sheet of:

NUMS 2019 Cancelled
Biology
Gaseous Exchange
Respiratory System of Man
A) Smooth muscles
Show Explanation
B) Cardiac muscles
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C) Skeletal muscles
Show Explanation
D) All of these
Show Explanation

Breathing rate in humans at rest is:

PMC Practice 6
Biology
Gaseous Exchange
Respiratory System of Man
A) 10 to 15 times per minute
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B) 10 to 20 times per minute
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C) 80 to 120 times per minute
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D) 15 to20 times per minute
Show Explanation

Most carbon dioxide is transported in the form of?

PMC Practice 4
Biology
Gaseous Exchange
Transport of Gases
A) Carboxyhemoglobin
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B) Plasma proteins
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C) Bicarbonate ions
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D) In dissolved form
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The organs which are similar in function but differ in structure are called:

PMC 2020
Biology
Evolution
A) Analogous organs
Show Explanation
B) Homologous organs
Show Explanation
C) Convergent evolution
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D) Divergent evolution
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Resting membrane potential of neurons is _______, while during active membrane potential the inner membrane surface becomes more _____ than the outside.

NUMS 2019 Reconduct
Biology
Coordination and Control
Steps Involved in Nervous Coordination
A) +70 mV ; negative
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B) -70 mV ; negative
Show Explanation
C) +70 mV ; positive
Show Explanation
D) -70 mV ; positive
Show Explanation

Darwin suggested that populations of individual species become better adapted to their local environments through:

Biology
Evolution
A) Artificial selection
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B) Adaptation
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C) Variation
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D) Natural selection
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A surfactant is essential for:

PMC Practice 4
Biology
Gaseous Exchange
Respiratory Disorders
A) Efficient gas exchange
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B) Maintaining structural integrity of alveoli
Show Explanation
C) Both Options A and B are correct
Show Explanation
D) None of these options is correct
Show Explanation

Which of the following is not the function of the cerebrum?

NUMS 2016
Biology
Coordination and Control
Central Nervous System
A) Voluntary digestion
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B) Thinking
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C) Intelligence
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D) Skeletal muscles
Show Explanation

The shape of the tobacco mosaic virus is:

NUMS 2016
Biology
Bio-diversity | Variety of Life
A) Spring shape
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B) Rod shape
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C) Comma shape
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D) Spherical shape
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Vaccines for all of these have been developed EXCEPT:

NUMS 2019 Reconduct
Biology
Bio-diversity | Variety of Life
A) Polio
Show Explanation
B) Mumps
Show Explanation
C) Measles
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D) Cancer
Show Explanation

Vocal cords, which help in voice production are two thin edged fibrous bands, present in:

NUMS 2019 Cancelled
Biology
Gaseous Exchange
Respiratory System of Man
A) Glottis
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B) Bronchus
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C) Larynx
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D) Trachea
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Choose the correct combination:

NUMS 2019 Cancelled
Biology
Evolution
A) Darwin – survival of the fittest
Show Explanation
B) Darwin – no extinction
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C) Lamarck – acquired transmission
Show Explanation
D) Both Darwin – survival of the fittest and Lamark – acquired transmission
Show Explanation