Speed of sound does not depend on:

Balochistan Mock 3
Physics
Wave Motion and Sound
A) Pressure
Show Explanation
B) Density
Show Explanation
C) Adiabatic Index
Show Explanation
D) Amplitude
Show Explanation

Numbers of electrons emitted in photoelectric effect depends upon ____.

Balochistan Mock 3
Physics
Dawn of Modern Physics
Photoelectric Effect
A) Wavelength of incident light
Show Explanation
B) Frequency of incident light
Show Explanation
C) Energy of incident light
Show Explanation
D) Intensity of incident light
Show Explanation

An object is moving at constant speed, which of the following is always true?

Balochistan Mock 3
Physics
Forces and Motion
A) Distance is greater than displacement
Show Explanation
B) Distance is lesser than displacement
Show Explanation
C) Distance is equal to displacement
Show Explanation
D) We cannot answer
Show Explanation

The region that lies between IR and UV regions is called:

Balochistan Mock 3
Physics
Electromagnetic Waves
A) Radio waves
Show Explanation
B) None of these
Show Explanation
C) X ray region
Show Explanation
D) Visible light
Show Explanation

If a bird catches its prey from a height which was initially at rest then momentum will be conserved for:

Balochistan Mock 3
Physics
Forces and Motion
A) Bird
Show Explanation
B) Prey
Show Explanation
C) Either bird and prey
Show Explanation
D) Both bird and prey
Show Explanation

The earth rotates 360o about its axis in about 24 hours. By how many degrees will it rotate In 2 hours?

Balochistan Mock 3
Physics
Circular Motion & Momentum
A) 90
Show Explanation
B) 60
Show Explanation
C) 30
Show Explanation
D) 15
Show Explanation

The Garrison and Garmer experiment indicate?

Balochistan Mock 3
Physics
Dawn of Modern Physics
Wave Nature of Particles
A) Interference
Show Explanation
B) ELectron diffraction
Show Explanation
C) Polarization
Show Explanation
D) Refraction
Show Explanation

Which of the following quantities has no effect on simple projectile motion?

Balochistan Mock 3
Physics
Forces and Motion
Motion in Two Dimensions
A) Velocity
Show Explanation
B) Force
Show Explanation
C) Mass
Show Explanation
D) Acceleration
Show Explanation

Which of the following forces are only attractive?

Balochistan Mock 3
Physics
Electrostatics
A) Electrostatic forces
Show Explanation
B) Gravitational forces
Show Explanation
C) Magnetic forces
Show Explanation
D) Forces between same poles of magnet
Show Explanation

Infrasonic waves have a frequency of:

Balochistan Mock 3
Physics
Wave Motion and Sound
A) Greater than 20000 Hz
Show Explanation
B) Less than 20 Hz
Show Explanation
C) 20 Hz
Show Explanation
D) Greater than 20 Hz
Show Explanation

If a particle launched with 5m/s at angle of 45 degree, then time of flight is:

Balochistan Mock 3
Physics
Forces and Motion
Motion in Two Dimensions
A) 1.44 s
Show Explanation
B) 0.72 s
Show Explanation
C) 0.6 s
Show Explanation
D) 0.5 s
Show Explanation

The number of diodes in bridge rectifier is

Balochistan Mock 3
Physics
Electronics
Rectification
A) 4
Show Explanation
B) 3
Show Explanation
C) 2
Show Explanation
D) 5
Show Explanation

A liquid has specific heat capacity c. The rate of change in temperature of liquid is R. The rate at which heat is transferred from the liquid is P. What is the mass of the liquid?

Balochistan Mock 3
Physics
Heat and Thermodynamics
Work and Heat
A) P/cR
Show Explanation
B) PR/c
Show Explanation
C) Pc/R
Show Explanation
D) cPR
Show Explanation

Calculate the frequency of photon associated with 500 nm wavelength.

Balochistan Mock 3
Physics
Atomic Spectra
Bohrs Model of the Hydrogen Atom
A) 5 x 10^(14) Hz
Show Explanation
B) 6 x 10^(14) Hz
Show Explanation
C) 7 x 10^(14) Hz
Show Explanation
D) 9 x 10^(14) Hz
Show Explanation

In simple harmonic motion, which two quantities are always in opposite direction?

Balochistan Mock 3
Physics
Oscillations and Simple Harmonic Motion
A) Kinetic energy and potential energy
Show Explanation
B) Kinetic energy and velocity
Show Explanation
C) Velocity and acceleration
Show Explanation
D) Acceleration and displacement
Show Explanation

A projectile is launched with vertical kinetic energy, K at an angle of 8˚. Its variation with kinetic energy KO is?

Balochistan Mock 3
Physics
Forces and Motion
Motion in Two Dimensions
A) Parabolic
Show Explanation
B) Periodic
Show Explanation
C) Hyperbolic trajectory
Show Explanation
D) Linear
Show Explanation

The value of current in a short circuit is:

Balochistan Mock 3
Physics
Current Electricity
Electric Current
A) Infinite
Show Explanation
B) Zero
Show Explanation
C) Minimum
Show Explanation
D) Maximum
Show Explanation

The hot resistance of the bulb’s filament is higher than its cold resistance because the temperature coefficient of the filament is ____.

Balochistan Mock 3
Physics
Current Electricity
Resistivity and its Dependence upon Temperature
A) Zero
Show Explanation
B) Negative
Show Explanation
C) Positive
Show Explanation
D) About 2 ohms per degree
Show Explanation

An adiabatic change is the one in which ______.

Balochistan Mock 3
Physics
Heat and Thermodynamics
First Law of Thermodynamics
A) No heat is added or taken out of the system
Show Explanation
B) No change of temperature takes place
Show Explanation
C) Boyle’s law is applicable
Show Explanation
D) Pressure and volume remains constant
Show Explanation

A 1kW motor pumps out water from a well 10 meter deep. What is the quantity of water pumped out per second?

Balochistan Mock 3
Physics
Work, Power & Energy
A) 9.2 kg
Show Explanation
B) 9.5 kg
Show Explanation
C) 10.2 kg
Show Explanation
D) 10.8 kg
Show Explanation

An example of a non-ohmic resistor is:

Balochistan Mock 3
Physics
Current Electricity
Ohms Law
A) Diode
Show Explanation
B) Tungsten wire
Show Explanation
C) Carbon resistor
Show Explanation
D) Copper wire
Show Explanation

The electric field ‘E’ and magnetic field ‘B’ in electromagnetic waves are?

Balochistan Mock 3
Physics
Electromagnetic Waves
A) Parallel to each other
Show Explanation
B) Inclined at an angle of 45o
Show Explanation
C) Perpendicular to each other
Show Explanation
D) Opposite to each other
Show Explanation

A bus and a car, moving at the same speed, are brought to rest by applying the same retarding force then:

Balochistan Mock 3
Physics
Forces and Motion
A) bus will come to rest in a shorter distance
Show Explanation
B) car will come to rest in a shorter distance
Show Explanation
C) both will come to rest in the same distance
Show Explanation
D) none of the above
Show Explanation

A wagon weighing 1000kg is moving with a velocity 50 km/h on smooth horizontal rails. A mass of 250kg is dropped into it. The velocity with which it moves in km/h now is:

Balochistan Mock 3
Physics
Forces and Motion
A) 20 km/h
Show Explanation
B) 60 km/h
Show Explanation
C) 40 km/h
Show Explanation
D) 25 km/h
Show Explanation

Charge inside conductor is:

Balochistan Mock 3
Physics
Electrostatics
Gauss’s Law and its Application
A) Possible
Show Explanation
B) Can be greater than zero
Show Explanation
C) Zero
Show Explanation
D) Negative always
Show Explanation

Work done is said to be negative if force and displacement are ___.

Balochistan Mock 3
Physics
Work, Power & Energy
A) Parallel
Show Explanation
B) Perpendicular
Show Explanation
C) Anti parallel
Show Explanation
D) None of these
Show Explanation

If an AC voltage of rms value of 10 volts is applied as input of a half-wave rectifier, then the voltage value of the DC output will be:

Balochistan Mock 3
Physics
Alternating Current
R-C, R-L and R-L-C Series AC Circuits
A) 10 V
Show Explanation
B) 10.3 V
Show Explanation
C) 10.7 V
Show Explanation
D) 9.3 V
Show Explanation

A set of Atoms in an excited state decays:

Balochistan Mock 3
Physics
Atomic Spectra
Bohrs Model of the Hydrogen Atom
A) In any general state with lower energy
Show Explanation
B) In any state when excited by electric field
Show Explanation
C) In any state when excited by magnetic field
Show Explanation
D) None of these options are correct
Show Explanation

In Davisson-Germer experiment, the diffracted electron beam from crystal shows

Balochistan Mock 3
Physics
Dawn of Modern Physics
Wave Nature of Particles
A) Particle property
Show Explanation
B) Light property
Show Explanation
C) Wave property
Show Explanation
D) Quantum property
Show Explanation

The unit of capacitance is:

Balochistan Mock 3
Physics
Electrostatics
Capacitor
A) Farad
Show Explanation
B) Volt
Show Explanation
C) Seconds
Show Explanation
D) Ampere
Show Explanation

In which situation is distance three times its displacement?

Balochistan Mock 3
Physics
Forces and Motion
A) Object moves and come back to its initial position
Show Explanation
B) Object moves 20 m towards east and 10 m towards west
Show Explanation
C) Object moves 20 m towards east and 10 m towards south
Show Explanation
D) Object moves 20 m towards north and 10 m towards west
Show Explanation

Current that fluctuates periodically with time is ——

Balochistan Mock 3
Physics
Alternating Current
Alternating Voltage and Current
A) DC current
Show Explanation
B) BC current
Show Explanation
C) ACcurrent
Show Explanation
D) Magnetic current
Show Explanation

If f1 and f2 are frequencies of two tuning forks, such that f1 < f2, then number of beats produced in one second are: Balochistan Mock 3 Physics Wave Motion and Sound A) f2 - f1 Show Explanation B) f2 x f1 Show Explanation C) f1 - f2 Show Explanation D) f2 + f1 Show Explanation

A body performing circular motion with a constant speed has a constant:

Balochistan Mock 3
Physics
Circular Motion & Momentum
A) momentum
Show Explanation
B) angular velocity
Show Explanation
C) acceleration
Show Explanation
D) radius vector
Show Explanation

If a wheel of radius r turns through an angle of 30o, then the distance through which any points on its rim moves is

Balochistan Mock 3
Physics
Circular Motion & Momentum
A) π/3r
Show Explanation
B) π/6r
Show Explanation
C) π/30r
Show Explanation
D) π/180r
Show Explanation

When a body moves in a circle, the angle between its velocity v and angular velocity ω is always

Balochistan Mock 3
Physics
Circular Motion & Momentum
A) 0o
Show Explanation
B) 180o
Show Explanation
C) 360o
Show Explanation
D) 90o
Show Explanation

What is the magnetic force on a stationary charged particle in a uniform magnetic field?

Balochistan Mock 3
Physics
Magnetism and Electromagnetic Induction
Force on a Moving Charge in a Magnetic Field
A) Zero
Show Explanation
B) F-q
Show Explanation
C) F=qvB
Show Explanation
D) F=ILBsin0
Show Explanation

Stationary waves are produced by:

Balochistan Mock 3
Physics
Wave Motion and Sound
A) Reflection
Show Explanation
B) Interference
Show Explanation
C) Diffraction
Show Explanation
D) Rarefaction
Show Explanation

The strength of the magnetic field at a point r near a long straight current carrying wire is B. The field at a distance r/2 will be:

Balochistan Mock 3
Physics
Magnetism and Electromagnetic Induction
Force on a Current Carrying Conductor in a Uniform Magnetic Field
A) B/2
Show Explanation
B) B/4
Show Explanation
C) 2B
Show Explanation
D) 4B
Show Explanation

If there is a frictional force between two surfaces, then which of the following will be created?

Balochistan Mock 3
Physics
Electrostatics
Electric Field Lines
A) Electric field
Show Explanation
B) Charge
Show Explanation
C) Magnetic field
Show Explanation
D) All of these
Show Explanation

The expression for centripetal force is given by:

Balochistan Mock 3
Physics
Circular Motion & Momentum
A) mrω2
Show Explanation
B) m2v2/r2
Show Explanation
C) m2v2/r
Show Explanation
D) mv2/r2
Show Explanation

An electromagnetic wave is propagating along Y-axis.
Then:

Balochistan Mock 3
Physics
Electromagnetic Waves
A) Oscillating electric field is along X-axis and oscillating magnetic field is along Y-axis.
Show Explanation
B) Oscillating electric field is along Z-axis and oscillating magnetic field is along X-axis.
Show Explanation
C) Both oscillating electric and magnetic fields are along Y-axis, but phase difference between them is 90°.
Show Explanation
D) Both oscillating electric and magnetic fields are mutually perpendicular in arbitrary directions.
Show Explanation

The most penetrating radintions out of the following ls that of

Balochistan Mock 3
Physics
Nuclear Physics
Biological Effects and Uses of Radiation
A) γ-rays
Show Explanation
B) α-particles
Show Explanation
C) β-rays
Show Explanation
D) X-rays
Show Explanation

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

Balochistan Mock 3
Physics
Atomic Spectra
Spectrum of Hydrogen Atom
A) Four
Show Explanation
B) Three
Show Explanation
C) Five
Show Explanation
D) One
Show Explanation

If a force of 2 N is applied on charge of 3 Coulomb, the electric field becomes ____.

Balochistan Mock 3
Physics
Electrostatics
Fields of Force
A) 3/2 N/C
Show Explanation
B) 2/3 N/C
Show Explanation
C) 1/2 N/C
Show Explanation
D) none of these
Show Explanation

The stator and the rotor of an A.C. motor are connected by a

Balochistan Mock 3
Physics
Magnetism and Electromagnetic Induction
A.C. and D.C. Generator
A) Copper wire
Show Explanation
B) Silver wire
Show Explanation
C) Aluminum wire
Show Explanation
D) No physical connection between them
Show Explanation

Choose the correct statement for the energy band structure of a semiconductor:

Balochistan Mock 3
Physics
Electronics
Semiconductors
A) At absolute zero temperature, the conduction band of semiconductor is completely filled and valance band is totally empty
Show Explanation
B) At absolute zero temperature, the conduction band of semiconductor is totally empty and valance band is totally filled
Show Explanation
C) At absolute zero temperature, both conduction band and valance band of semiconductor are totally empty
Show Explanation
D) At absolute zero temperature, both conduction band and valance band of semiconductor are completely filled
Show Explanation

Iodine-131 is used to trace which cancer

Balochistan Mock 3
Physics
Nuclear Physics
Biological Effects and Uses of Radiation
A) lungs
Show Explanation
B) thyroid gland
Show Explanation
C) breast
Show Explanation
D) liver
Show Explanation

The potential energy at the mean position of a pendulum is:

Balochistan Mock 3
Physics
Oscillations and Simple Harmonic Motion
A) Half
Show Explanation
B) Maximum
Show Explanation
C) Minimum
Show Explanation
D) 75%
Show Explanation

The extension in a string, obeying Hooke’s law, is x. The speed of sound in the stretched string is v. If the extension in the string is increased to 1.5x, the speed of sound will be:

Balochistan Mock 3
Physics
Oscillations and Simple Harmonic Motion
A) 1.22v
Show Explanation
B) 0.61v
Show Explanation
C) 1.50v
Show Explanation
D) 0.75v
Show Explanation

A constant force of 10 N is applied on a body which causes displacement of 12 cm, what will be the work done?

Balochistan Mock 3
Physics
Work, Power & Energy
A) 120 J
Show Explanation
B) 12 J
Show Explanation
C) 1.2 J
Show Explanation
D) 18 J
Show Explanation

Due to high elasticity, the speed of sound is maximum in:

Balochistan Mock 3
Physics
Wave Motion and Sound
A) Solids
Show Explanation
B) Liquids
Show Explanation
C) Gases
Show Explanation
D) Plazma
Show Explanation

By burning 1 g of coal, the energy produced is 2 kcal. Then for 1 kWh, the quantity of coal required will be nearly:

Balochistan Mock 3
Physics
Work, Power & Energy
A) 9 kg
Show Explanation
B) 4/5 kg
Show Explanation
C) 3/7 kg
Show Explanation
D) 3/14 kg
Show Explanation

Select the option which fits appropriately in the blank:

Although he studied hard, he couldn’t succeed __________ getting a high score in his test.

Balochistan Mock 3
English
Fill in the blank
A) In
Show Explanation
B) On
Show Explanation
C) At
Show Explanation
D) To
Show Explanation

I’m now going to give you 10 _______ tips for running a really successful website.

Balochistan Mock 3
English
Grammar and Punctuation
A) Invaluable
Show Explanation
B) Valueless
Show Explanation
C) Unworthy
Show Explanation
D) Unprofitable
Show Explanation

Select the option which fits appropriately in the blank:

I am in London this Summer, I ___________ English.

Balochistan Mock 3
English
Fill in the blank
A) Learn
Show Explanation
B) Learns
Show Explanation
C) Am learning
Show Explanation
D) Learning
Show Explanation

Select the option which fits appropriately in the blank:

A really sophisticated person would never be _______ enough, to think that he is always right.

Balochistan Mock 3
English
Fill in the blank
A) Reverent
Show Explanation
B) Naive
Show Explanation
C) Articulate
Show Explanation
D) Humble
Show Explanation

What is the short form of:

We are

Balochistan Mock 3
English
Identify errors in sentence
A) We’re
Show Explanation
B) Were
Show Explanation
C) Wer’e
Show Explanation
D) Were’
Show Explanation

I think ________ man over there is very ill. He can’t stand on his feet.

Balochistan Mock 3
English
Fill in the blank
A) A
Show Explanation
B) An
Show Explanation
C) The
Show Explanation
D) No article is required
Show Explanation

Find errors in the following sentence:

Balochistan Mock 3
English
Identify errors in sentence
A) We have
Show Explanation
B) Been knowing
Show Explanation
C) Each other
Show Explanation
D) Since we were children.
Show Explanation

We have ________ small house in _________ village in _________ Netherlands.

Balochistan Mock 3
English
Grammar and Punctuation
A) The…an…a
Show Explanation
B) An…a…the
Show Explanation
C) A…a….the
Show Explanation
D) A…an…the
Show Explanation

They will bake the pies. Which tense is used here?

Balochistan Mock 3
English
Tenses and Sentence Structure
A) Present
Show Explanation
B) Past
Show Explanation
C) Future
Show Explanation
D) Universal
Show Explanation

None of them _______ able to solve this question.

Balochistan Mock 3
English
Fill in the blank
A) Is
Show Explanation
B) Were
Show Explanation
C) Will
Show Explanation
D) Would
Show Explanation

Choose the correct sentence from the following options:

Balochistan Mock 3
English
Tenses and Sentence Structure
A) Did you know that they’re leaving the city for good.
Show Explanation
B) Did you know that they’re leaving the city for good?
Show Explanation
C) Did you know that the’yre leaving the city for good?
Show Explanation
D) Did you know that theyre leaving the city for good.
Show Explanation

What type of sentence is this?

Our car broke down, so we came last.

Balochistan Mock 3
English
Tenses and Sentence Structure
A) Complex
Show Explanation
B) Simple
Show Explanation
C) Compound
Show Explanation
D) Compound-complex
Show Explanation

Choose the correct sentence:

Balochistan Mock 3
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

Find errors in the following sentence:

Balochistan Mock 3
English
Identify errors in sentence
A) The captain, along with his team
Show Explanation
B) Are practising very hard
Show Explanation
C) For the
Show Explanation
D) Forthcoming matches.
Show Explanation

Choose the correct sentence:

Balochistan Mock 3
English
Tenses and Sentence Structure
A) “Trust me, I know what I’m doing,” Bilal said. “Your car is not hard to fix.”
Show Explanation
B) “Trust me, I know what I’m doing,” Bilal said. “your car are not hard to fix.”
Show Explanation
C) “Trust me I know what Im doing,” Bilal said. “Your car is not hard to fix.”
Show Explanation
D) “Trust me, I know what I’m doing,” Bilal said. Your car is not hard to fix.
Show Explanation

Select the option which correctly represents the following word:

Who is

Balochistan Mock 3
English
Key Vocabulary
A) Whos
Show Explanation
B) Whose
Show Explanation
C) Who’s
Show Explanation
D) Whos’
Show Explanation

My friend ____________ (suffer) from cholera since August.

Balochistan Mock 3
English
Tenses and Sentence Structure
A) Suffer
Show Explanation
B) Suffered
Show Explanation
C) Suffering
Show Explanation
D) Is suffering
Show Explanation

Some of the people waiting in line _________ getting impatient.

Balochistan Mock 3
English
Fill in the blank
A) Is
Show Explanation
B) Was
Show Explanation
C) Are
Show Explanation
D) Be
Show Explanation

I. Ms. Kulsoom labelled Mr. Waleed a deserter.
II. Ms. Kulsoom offered an apology.

Balochistan Mock 3
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

A book cannot exist without?

Balochistan Mock 3
Logical Reasoning
Logical Deduction
A) Education
Show Explanation
B) Pictures
Show Explanation
C) Pages
Show Explanation
D) Qualification
Show Explanation

Which word does NOT belong with the others?

Balochistan Mock 3
Logical Reasoning
Logical Deduction
A) Index
Show Explanation
B) Glossary
Show Explanation
C) Chapter
Show Explanation
D) Book
Show Explanation

STATEMENTS:

I. The dialogue between Jinnah and Gandhi failed.

Il. Indian National Congress and Muslim League tried to join hands, so they will be united.

Balochistan Mock 3
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

How many such pairs of letters are there in the word ‘HISTORICAL’ which have as many letters between them in the word as they have between them in the English alphabet?

Balochistan Mock 3
Logical Reasoning
Logical Deduction
A) Six
Show Explanation
B) Three
Show Explanation
C) Five
Show Explanation
D) Eight
Show Explanation

A competition always has:

Balochistan Mock 3
Logical Reasoning
Critical Thinking
A) Reward
Show Explanation
B) Rivals
Show Explanation
C) Spectators
Show Explanation
D) Referee
Show Explanation

Which of the following is not an interstitial compound?

Balochistan Mock 3
Chemistry
d and f Block Elements
A) Cu-Zn
Show Explanation
B) Cu-Zn-Sn
Show Explanation
C) TiH1.73
Show Explanation
D) V2O5
Show Explanation

Which one of the following is the pure carbon compound and used as a reducing agent in industries?

Balochistan Mock 3
Chemistry
Hydrocarbons
A) Coal tar
Show Explanation
B) Petroleum
Show Explanation
C) Coal gas
Show Explanation
D) Coke
Show Explanation

Bond energy:

I. is the energy required to break a bond between two atoms in a diatomic molecule

II. Is taken as the energy released in forming a bond form free atoms

III. Is the measure of the strength of bond

Balochistan Mock 3
Chemistry
Chemical Bonding
Bond Energy and Bond Length
A) I only
Show Explanation
B) I and II only
Show Explanation
C) I and IIII only
Show Explanation
D) II only
Show Explanation
E) I, II and III
Show Explanation

A species which is formed by the acceptance of proton by a base is called _______.

Balochistan Mock 3
Chemistry
Chemical Equilibrium
State of Chemical Equilibrium
A) Acid
Show Explanation
B) Conjugate acid
Show Explanation
C) Conjugate base
Show Explanation
D) Salt
Show Explanation

The temperature at which one crystalline form changes to another is called ____ temperature.

Balochistan Mock 3
Chemistry
States of Matter – Gases, Liquids and Solids
A) Critical
Show Explanation
B) Absolute
Show Explanation
C) Transition
Show Explanation
D) None of these options is correct
Show Explanation

Modern periodic table is arranged in ascending order of?

Balochistan Mock 3
Chemistry
Atomic Structure
Sub Atomic Particles and Their Discoveries
A) Nucleon number
Show Explanation
B) Atomic mass
Show Explanation
C) Proton number
Show Explanation
D) Mass number
Show Explanation

The mass number of an atom is:

Balochistan Mock 3
Chemistry
Introduction to Fundamental Concepts of Chemistry
Introduction to the Atom
A) The number of electrons
Show Explanation
B) The number of neutrons
Show Explanation
C) The number of protons
Show Explanation
D) The number of neutrons and protons
Show Explanation

Select the organic compound which belongs to Arene family:

Balochistan Mock 3
Chemistry
Fundamental Principles of Organic Chemistry
Classifications of Organic Compounds
A) CH2 = CH2
Show Explanation
B) CH3 – O – CH3
Show Explanation
C) CH3 – NH2
Show Explanation
D) C6H6
Show Explanation

Which one of the following ions exhibits d-d transition and paramagnetism as well?

Balochistan Mock 3
Chemistry
d and f Block Elements
A) MnO4-
Show Explanation
B) CrO42-
Show Explanation
C) MnO42-
Show Explanation
D) Cr2O72-
Show Explanation

The common name of the following aldehyde is:

Balochistan Mock 3
Chemistry
Aldehydes and Ketones
Nomenclature of Adehydes and Ketones
A) α – Methyl – Ɣ – Chloro Propionaldehyde
Show Explanation
B) β – Chloro – Ɣ – Methyl – Propionaldehyde
Show Explanation
C) β – Chloro – α – Methyl Propionaldehyde
Show Explanation
D) β – Methyl – α – Chloro Propionaldehyde
Show Explanation

In the gaseous state, the distance between the molecules is ___ times _____ than their diameters.

Balochistan Mock 3
Chemistry
States of Matter – Gases, Liquids and Solids
Kinetic Molecular Theory Of Gases
A) 200, lesser
Show Explanation
B) 300, lesser
Show Explanation
C) 300, greater
Show Explanation
D) 200, greater
Show Explanation

Hydrolysis of Nitriles produces:

Balochistan Mock 3
Chemistry
Carboxylic Acids and its Derivatives
A) Carboxylic acid
Show Explanation
B) Aldehydes
Show Explanation
C) Ketones
Show Explanation
D) Esters
Show Explanation

sp3 hybridization in CH4 gives it ______ geometry.

Balochistan Mock 3
Chemistry
Chemical Bonding
VSEPR Theory
A) linear
Show Explanation
B) coplanar
Show Explanation
C) tetrahedral
Show Explanation
D) octahedral
Show Explanation

sp3 hybridization in CH4 gives it ______ geometry.

Balochistan Mock 3
Chemistry
Chemical Bonding
VSEPR Theory
A) linear
Show Explanation
B) coplanar
Show Explanation
C) tetrahedral
Show Explanation
D) octahedral
Show Explanation

One of the reactants consumed earlier than others in a chemical reaction is called:

Balochistan Mock 3
Chemistry
Stoichiometry
Limiting and Non Limiting Reagents
A) Active reactant
Show Explanation
B) Excess reactant
Show Explanation
C) Limiting reactant
Show Explanation
D) More active reactant
Show Explanation

Which of the following reactions is NOT shown by ketones?

Balochistan Mock 3
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

The velocity constants for the forward and backward reactions are 3.6 × 10⁻⁴ and 1.2 × 10⁻⁵. The equilibrium constant of the reaction is:

Balochistan Mock 3
Chemistry
Chemical Equilibrium
Equilibrium Constant
A) 3
Show Explanation
B) 0.033
Show Explanation
C) 0.33
Show Explanation
D) 30
Show Explanation

Type of reactants or product decides the nature of method adapted for finding

Balochistan Mock 3
Chemistry
Reaction Kinetics
Rate and velocity of chemical reaction
A) Rate constant
Show Explanation
B) Enthalpy
Show Explanation
C) Temperature
Show Explanation
D) Rate of a Reaction
Show Explanation

The rate of reaction:

Balochistan Mock 3
Chemistry
Reaction Kinetics
Rate and velocity of chemical reaction
A) Increases as the reaction proceeds
Show Explanation
B) Decreases as the reaction proceeds
Show Explanation
C) Remains unchanged
Show Explanation
D) None of these options is correct
Show Explanation

The atomic number is usually equals to ___

Balochistan Mock 3
Chemistry
Atomic Structure
Sub Atomic Particles and Their Discoveries
A) electrons
Show Explanation
B) protons
Show Explanation
C) neutrons
Show Explanation
D) positrons
Show Explanation

Find the mass in grams of 1.69 mol of phosphoric acid.

Balochistan Mock 3
Chemistry
Stoichiometry
Mole
A) 165.6 g
Show Explanation
B) 157 g
Show Explanation
C) 148 g
Show Explanation
D) 138 g
Show Explanation

In the electrolysis of NaNO3, Na+ is:

Balochistan Mock 3
Chemistry
Electrochemistry
Electrolysis
A) Discharged at anode
Show Explanation
B) Discharge at cathode
Show Explanation
C) Do not discharge
Show Explanation
D) None of these options is correct
Show Explanation

The alloy Duralumin is composed of ______ of Al.

Balochistan Mock 3
Chemistry
d and f Block Elements
A) 95%
Show Explanation
B) 90%
Show Explanation
C) 85%
Show Explanation
D) 80%
Show Explanation

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

Balochistan Mock 3
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

Atoms in solids are

Balochistan Mock 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

Which one of the following has largest ionic radius?

Balochistan Mock 3
Chemistry
Atomic Structure
Sub Atomic Particles and Their Discoveries
A) Li+
Show Explanation
B) O22-
Show Explanation
C) B3+
Show Explanation
D) F-
Show Explanation

What substrates are required to add a NO2 group to benzene?

Balochistan Mock 3
Chemistry
Hydrocarbons
Benzene and its Preparation
A) Concentrated HNO3/Concentrated H2SO4/100˚C
Show Explanation
B) Concentrated HNO3/Concentrated H2SO4/50˚C
Show Explanation
C) Concentrated HNO3/50˚C
Show Explanation
D) Concentrated HNO3/100˚C
Show Explanation

Which enthalpy change is relevant in the following process

Na(s) -> Na (g) ΔH = +107

Balochistan Mock 3
Chemistry
Thermochemistry
Standard States and Enthalpy Changes
A) Enthalpy of atomization
Show Explanation
B) Enthalpy of fusion
Show Explanation
C) Enthalpy of vaporization
Show Explanation
D) Enthalpy of formation
Show Explanation

An SN2 reaction at an asymmetric carbon of a compound always gives:

Balochistan Mock 3
Chemistry
Alkyl Halides and Amines
A) An metamerism of the substrate
Show Explanation
B) A product with opposite optical rotation
Show Explanation
C) A mixture of diastereomers
Show Explanation
D) A single stereoisomer
Show Explanation

The nature of Binding Force in Ionic Crystals is

Balochistan Mock 3
Chemistry
States of Matter – Gases, Liquids and Solids
Types of Solids
A) Magnetic
Show Explanation
B) Repulsive
Show Explanation
C) Electrostatic
Show Explanation
D) Weak
Show Explanation

Which of the following reagent is used to separate and purify carbonyl and non carbonyl compounds?

Balochistan Mock 3
Chemistry
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
A) HCN
Show Explanation
B) BrMgCH3
Show Explanation
C) NaHSO3
Show Explanation
D) H2O
Show Explanation

One mole of substance at STP has:

Balochistan Mock 3
Chemistry
Introduction to Fundamental Concepts of Chemistry
Stoichiometry
Mole
A) 2.24 dm³
Show Explanation
B) 24.4 dm³
Show Explanation
C) 2.44 dm³
Show Explanation
D) 22.4 dm³
Show Explanation

Michael Faraday discovered benzene in the gas formed from?

Balochistan Mock 3
Chemistry
Hydrocarbons
Benzene and its Preparation
A) Destructive distillation
Show Explanation
B) Fractional distillation
Show Explanation
C) Steam distillation
Show Explanation
D) Vacuum distillation
Show Explanation

Which of the following compounds show geometric isomerism?

Balochistan Mock 3
Chemistry
Fundamental Principles of Organic Chemistry
A) Option A
Show Explanation
B) Option B
Show Explanation
C) Option C
Show Explanation
D) Option D
Show Explanation

Which of the following values of heat of formation indicates that the product is least stable?

Balochistan Mock 3
Chemistry
Thermochemistry
Heat Capacity and Calorimetry
A) -393.5 KJ
Show Explanation
B) -972.7 KJ
Show Explanation
C) +89.9 KJ
Show Explanation
D) +272.2 KJ
Show Explanation

The transparent plastic used to make combs and hairbrushes is called:

Balochistan Mock 3
Chemistry
Macromolecules
Types of Polymers
A) PVA
Show Explanation
B) PVC
Show Explanation
C) Bakelite
Show Explanation
D) Perspex
Show Explanation

Zinc reacts with dil. H2SO4 to give H2. It also reacts with conc. H2SO4 to form SO2. In these reactions.

Balochistan Mock 3
Chemistry
d and f Block Elements
A) Zn reduces H+ to H2
Show Explanation
B) Zn oxidizes H+ to H2
Show Explanation
C) Zn reduces SO42-to SO2
Show Explanation
D) Zn oxidises SO42- to SO2
Show Explanation
E) Both A and C
Show Explanation

IUPAC Nomenclature of:

CH3 – CH = CH – CH2 – CH = CH2 is:

Balochistan Mock 3
Chemistry
Hydrocarbons
Nomenclature of Hydrocarbons
A) 2 – pentene
Show Explanation
B) 1 , 4 – hexadiene
Show Explanation
C) 3 – methyl butane
Show Explanation
D) 1, 3, 5 – heptatriene
Show Explanation
E) 1, 3, 6 hexatriene
Show Explanation

By fermentation process of starch and by the catalytic enzyme, ______ is produced.

Balochistan Mock 3
Chemistry
Alcohol, Phenols, and Ethers
A) Methyl alcohol
Show Explanation
B) Ethyl alcohol
Show Explanation
C) Acetyl alcohol
Show Explanation
D) Methanal
Show Explanation

Which of the following has the highest reduction potential?

Balochistan Mock 3
Chemistry
Electrochemistry
Redox Equations
A) F
Show Explanation
B) Li
Show Explanation
C) Cl
Show Explanation
D) Mg
Show Explanation

H2 and Cl2 do not react in the dark, but in the presence of light a vigorous reaction is initiated due to the formation of:

Balochistan Mock 3
Chemistry
Hydrocarbons
Alkanes and Paraffins
A) Hydrogen free radical
Show Explanation
B) Chlorine free radical
Show Explanation
C) Hydrogen chloride molecule
Show Explanation
D) Both hydrogen and chlorine free radicals
Show Explanation

Catalyst used in reaction CHCl3+ ½ O2→ COCl2+ HCl is ________ and its nature is _______.

Balochistan Mock 3
Chemistry
Alcohol, Phenols, and Ethers
A) 5% methyl alcohol … negative
Show Explanation
B) 2% Ethyl alcohol … negative
Show Explanation
C) V2O5… positive
Show Explanation
D) Al2O3….. negative
Show Explanation

Acetic anhydride is a product of acetic acid, as a result of the following reaction:

Balochistan Mock 3
Chemistry
Carboxylic Acids and its Derivatives
A) Dehydration
Show Explanation
B) Reduction
Show Explanation
C) Oxidation
Show Explanation
D) Esterification
Show Explanation

The type of isomerism existing in a compound of molecular formula C2H6O is:

Balochistan Mock 3
Chemistry
Fundamental Principles of Organic Chemistry
Introduction to Fundamental Principles of Organic Chemistry
A) Functional group
Show Explanation
B) Position
Show Explanation
C) Chain
Show Explanation
D) Metamerism
Show Explanation

An ester is prepared by:

Balochistan Mock 3
Chemistry
Carboxylic Acids and its Derivatives
A) Two alcohols
Show Explanation
B) Carboxylic acid and alcohol
Show Explanation
C) Ketone and alcoho
Show Explanation
D) Aldehyde and alcohol
Show Explanation

H2S is an example of ______ hydride.

Balochistan Mock 3
Chemistry
Chemical Bonding
Hydrogen Bonding
A) Ionic
Show Explanation
B) Covalent
Show Explanation
C) Complex
Show Explanation
D) Metallic
Show Explanation
E) Border – line hydride
Show Explanation

The product formed by acid catalysed hydration of 2 – phenyl propene is:

Balochistan Mock 3
Chemistry
Alcohol, Phenols, and Ethers
A) 3 – phenyl – 2 – propanol
Show Explanation
B) 2 – phenyl – 2 – propanol
Show Explanation
C) 1 – phenyl – 1 – propanol
Show Explanation
D) 1 – phenyl – 2- propanol
Show Explanation

The color of Mg metal flame is?

Balochistan Mock 3
Chemistry
d and f Block Elements
A) Blue
Show Explanation
B) Violet
Show Explanation
C) Yellow
Show Explanation
D) White
Show Explanation

What is the unit of Kw for water?

Balochistan Mock 3
Chemistry
Chemical Equilibrium
Equilibrium Constant
A) Moles/dm³
Show Explanation
B) Mol²/L²
Show Explanation
C) Dm³/moles
Show Explanation
D) Dm³/moles²
Show Explanation

Which of the following will react with water?

Balochistan Mock 3
Chemistry
Chemical Bonding
Hydrogen Bonding
A) CHCl3
Show Explanation
B) Cl3CCHO
Show Explanation
C) CHI4
Show Explanation
D) ClCH2CH2Cl
Show Explanation

Bond energy:

I. is the energy required to break a bond between two atoms in a diatomic molecule

II. Is taken as the energy released in forming a bond form free atoms

III. Is the measure of the strength of bond

Balochistan Mock 3
Chemistry
Chemical Bonding
Bond Energy and Bond Length
A) I only
Show Explanation
B) I and II only
Show Explanation
C) I and IIII only
Show Explanation
D) II only
Show Explanation
E) I, II and III
Show Explanation

H2S is an example of ______ hydride.

Balochistan Mock 3
Chemistry
Chemical Bonding
Hydrogen Bonding
A) Ionic
Show Explanation
B) Covalent
Show Explanation
C) Complex
Show Explanation
D) Metallic
Show Explanation

Boyle’s law is stated as:”The product of pressure and volume of a fixed amount of gas at constant temperature is a _____ quantity

Balochistan Mock 3
Chemistry
States of Matter – Gases, Liquids and Solids
Gas Laws and General Gas Equation
A) variable
Show Explanation
B) constant
Show Explanation
C) discreet
Show Explanation
D) decreasing
Show Explanation

Which of the following is not a physical property of ethers?

Balochistan Mock 3
Chemistry
Alcohol, Phenols, and Ethers
A) They are usually volatile liquids
Show Explanation
B) Show weak hydrogen bonding
Show Explanation
C) They are highly flammable with low boiling points
Show Explanation
D) It is poisonous and is used as a disinfectant in hospitals
Show Explanation

During meiosis, the homologous chromosomes come together and form pairs, this process is called:

Balochistan Mock 3
Biology
Cell Cycle
Meiosis
A) Linkage
Show Explanation
B) Synapsis
Show Explanation
C) Pairing
Show Explanation
D) Crossing over
Show Explanation

This carries the egg to the uterus.

Balochistan Mock 3
Biology
Reproduction
Reproduction in Females
A) Fallopian tube
Show Explanation
B) Ovary
Show Explanation
C) Cervix
Show Explanation
D) Vagina
Show Explanation

Which of the following is a form of asexual reproduction in prokaryotic cells?

Balochistan Mock 3
Biology
Kingdom Prokaryote
Growth and Reproduction in Bacteria
A) Binary fission and mitosis
Show Explanation
B) Binary fission and meiosis
Show Explanation
C) Binary fission and transformation
Show Explanation
D) Binary fission
Show Explanation

In Morgan’s linkage experiment, when males and females of F2 generation mate with each other and produce offspring, the percentage of recombinants was:

Balochistan Mock 3
Biology
Variation and Genetics
Sex Linkage
A) 37
Show Explanation
B) 22
Show Explanation
C) 2
Show Explanation
D) 70
Show Explanation

The end product in anaerobic respiration is:

Balochistan Mock 3
Biology
Bioenergetics
Anaerobic Respiration
A) Ethanol and Carbon dioxide
Show Explanation
B) Lactate
Show Explanation
C) Pyruvate
Show Explanation
D) Both A and B
Show Explanation

Centrosome is found in:

Balochistan Mock 3
Biology
Cell Structure and Function
Cytoplasm and Organelles
A) Cytoplasm
Show Explanation
B) Nucleus
Show Explanation
C) Chromosomes
Show Explanation
D) Nucleolus
Show Explanation

Which type of bond is not responsible in maintaining the tertiary structure of proteins?

Balochistan Mock 3
Biology
Biological Molecules
Proteins
A) Ionic
Show Explanation
B) Hydrogen
Show Explanation
C) Peptide
Show Explanation
D) Glycosidic
Show Explanation

An example of a bacteria requiring low concentration of oxygen is?

Balochistan Mock 3
Biology
Kingdom Prokaryote
Taxonomy, Ecology & Diversity of Bacteria
A) Spirochete
Show Explanation
B) Ecoli
Show Explanation
C) Pseudomonas
Show Explanation
D) Campylobacter
Show Explanation

Human embryo remains enclosed in:

Balochistan Mock 3
Biology
Growth and Development
Embryonic Development
A) Amniotic sac
Show Explanation
B) Placenta
Show Explanation
C) Chorion
Show Explanation
D) Allantois
Show Explanation

Composite of an organism’s observable characters or traits is called?

Balochistan Mock 3
Biology
Variation and Genetics
A) Genotype
Show Explanation
B) Phenotype
Show Explanation
C) Recombinant
Show Explanation
D) Replication
Show Explanation

Two populations of the same species over time grow distant from one another. At what point will these two populations be considered different species?

Balochistan Mock 3
Biology
Evolution
A) When the populations begin to eat different foods
Show Explanation
B) When there is a physical barrier, such as a river, between the two population
Show Explanation
C) When the two populations have not been in contact with one another for two hundred years
Show Explanation
D) When they are no longer able to interbreed
Show Explanation

What is the effect of enzyme DNA ligase?

Balochistan Mock 3
Biology
Chromosomes and DNA
The Chemical Nature of DNA
A) DNA is broken up at specific sites
Show Explanation
B) DNA fragments are joined together
Show Explanation
C) DNA replication occurs
Show Explanation
D) DNA transcription occurs
Show Explanation

Which element has a function in opening and closing of stomata?

Balochistan Mock 3
Biology
Transport
A) K
Show Explanation
B) Mg
Show Explanation
C) Cu
Show Explanation
D) Fe
Show Explanation

These animals have three germinal layers but no coelom

Balochistan Mock 3
Biology
Kingdom Animalia
Classification according to Coelem
A) Flat worms
Show Explanation
B) Round worms
Show Explanation
C) Cnidarians
Show Explanation
D) Chordates
Show Explanation

The Light reaction takes place in?

Balochistan Mock 3
Biology
Bioenergetics
Light Dependent Mechanism of Photosynthesis
A) Chloroplast
Show Explanation
B) Grana
Show Explanation
C) Thylakoid
Show Explanation
D) Stroma
Show Explanation

The total aggregate of genes in a population at any one time is called population’s?

Balochistan Mock 3
Biology
Variation and Genetics
Mendelian Inheritance
A) genome
Show Explanation
B) gene pool
Show Explanation
C) genetic group
Show Explanation
D) genomic library
Show Explanation

Which of the following are assembled and disassembled during the cell cycle?

Balochistan Mock 3
Biology
Cell Cycle
Meiosis
A) microtubules
Show Explanation
B) microfilaments
Show Explanation
C) all of these
Show Explanation
D) none of these
Show Explanation

Which of the following is the name of the modified endoplasmic reticulum foundin muscle cells?

Balochistan Mock 3
Biology
Support and Movement
Ultrastructure & Mechanism of Skeletal Muscle Contraction
A) T-tubule
Show Explanation
B) Sarcomere
Show Explanation
C) Myoplasmic reticulum
Show Explanation
D) Sarcoplasmic reticulum
Show Explanation

Pinworm is a common name used for which of the following?

Balochistan Mock 3
Biology
Kingdom Animalia
Phylums – porifera to chordata
A) Rhabditis
Show Explanation
B) Ancylostoma duodenale
Show Explanation
C) Taenia solium
Show Explanation
D) Enterobius vermicularis
Show Explanation

The enzyme-substrate complex is formed in which part of the enzyme molecule?

Balochistan Mock 3
Biology
A) Binding site
Show Explanation
B) Allosteric site
Show Explanation
C) Catalytic site
Show Explanation
D) None of the above
Show Explanation

Thymus, spleen, tonsils and adenoids produce:

Balochistan Mock 3
Biology
Transport
A) erythrocytes
Show Explanation
B) lymphocytes
Show Explanation
C) phagocytes
Show Explanation
D) thrombocytes
Show Explanation

Which of the following is NOT TRUE about the Human Immunodeficiency virus (HIV)?

Balochistan Mock 3
Biology
Bio-diversity | Variety of Life
A) It is a retrovirus
Show Explanation
B) It is surrounded by an envelope
Show Explanation
C) It does not cause AIDS
Show Explanation
D) It causes deficiency of the human immune system
Show Explanation

Which type of evolution is represented by analogous organs?

Balochistan Mock 3
Biology
Evolution
A) Divergent evolution
Show Explanation
B) Straight evolution
Show Explanation
C) Zig-zag evolution
Show Explanation
D) Convergent evolution
Show Explanation

The furan ring is an important structural component of biological molecules. How many carbon atoms are required to form ribofuranose?

Balochistan Mock 3
Biology
Biological Molecules
Carbohydrates
A) 3
Show Explanation
B) 5
Show Explanation
C) 6
Show Explanation
D) 2
Show Explanation

Which one of the following is found in both messenger RNA and DNA of a mammalian cell?

Balochistan Mock 3
Biology
Biological Molecules
Nucleic Acids
A) Double helical structure
Show Explanation
B) Ribose sugar
Show Explanation
C) Thymine
Show Explanation
D) Sugar – phosphate backbone
Show Explanation

Photophosphorylation takes place in the _____ of the chloroplasts:

Balochistan Mock 3
Biology
Bioenergetics
Respiration Mechanism – Glycolysis to Electron Transport Chain
A) Stroma
Show Explanation
B) Granum
Show Explanation
C) Inner membrane
Show Explanation
D) Outer membrane
Show Explanation

Carbohydrate catabolism is concerned with the fate of:

Balochistan Mock 3
Biology
Nutrition
Digestion and Absorption
A) ATP
Show Explanation
B) Glucose
Show Explanation
C) Aminoacid
Show Explanation
D) All of these
Show Explanation

Which type of bonds are never formed when a substrate fits into the active site of an enzyme?

Balochistan Mock 3
Biology
A) Hydrogen bonds
Show Explanation
B) Ionic interactions
Show Explanation
C) Hydrophobic interactions
Show Explanation
D) Covalent linkages
Show Explanation

Numerous opportunist diseases might attack people suffering from the following diseases?

Balochistan Mock 3
Biology
Bio-diversity | Variety of Life
A) Measles
Show Explanation
B) Influenza
Show Explanation
C) Hepatitis A
Show Explanation
D) AIDS
Show Explanation

The semi-solid mass in stomach is known as:

Balochistan Mock 3
Biology
Nutrition
Digestion and Absorption
A) Bolus
Show Explanation
B) Chyme
Show Explanation
C) Serum
Show Explanation
D) Food
Show Explanation

Enzymes which are involved in transfer of electrons are known as?

Balochistan Mock 3
Biology
A) oxidases
Show Explanation
B) dehydrogenases
Show Explanation
C) hydrolyses
Show Explanation
D) both a and b
Show Explanation

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

Balochistan Mock 3
Biology
Evolution
A) Darwin’s theory of evolution
Show Explanation
B) Lamarckism
Show Explanation
C) Neo – darwinism
Show Explanation
D) Endosymbiont theory
Show Explanation

Select a method which causes the oxidation of chemical constituent of a bacterial cell:

Balochistan Mock 3
Biology
Kingdom Prokaryote
Importance and Control of bacteria
A) Steam
Show Explanation
B) Dry heat
Show Explanation
C) Filtration
Show Explanation
D) Radiation
Show Explanation

A smallest contractile unit of muscle contraction called sarcomere is the area between two?

Balochistan Mock 3
Biology
Support and Movement
Ultrastructure & Mechanism of Skeletal Muscle Contraction
A) H zone
Show Explanation
B) M line
Show Explanation
C) Z line
Show Explanation
D) Z zone
Show Explanation

The offspring of mating between two pure stains are called:

Balochistan Mock 3
Biology
Chromosomes and DNA
DNA as hereditary material
A) Hybrid
Show Explanation
B) The P generation
Show Explanation
C) Mutants
Show Explanation
D) The F2 generation
Show ExplanationThe offspring of mating between two pure stains are called:

Balochistan Mock 3
Biology
Chromosomes and DNA
DNA as hereditary material
A) Hybrid
Show Explanation
B) The P generation
Show Explanation
C) Mutants
Show Explanation
D) The F2 generation
Show Explanation

The lipid vesicles used for drug delivery system called

Balochistan Mock 3
Biology
Biological Molecules
Lipids
A) inositides
Show Explanation
B) lipoproteins
Show Explanation
C) liposomes
Show Explanation
D) drugoles
Show Explanation

Vertebrates belong to phylum chordata because:

Balochistan Mock 3
Biology
Kingdom Animalia
Phylums – porifera to chordata
A) They have a vertebral column
Show Explanation
B) The brain is enclosed by the skull
Show Explanation
C) The embryos have gills
Show Explanation
D) The body develops from three germinal layers
Show Explanation

The infection of lungs is called:

Balochistan Mock 3
Biology
Gaseous Exchange
Respiratory Disorders
A) Emphysema
Show Explanation
B) Asthma
Show Explanation
C) Pneumonia
Show Explanation
D) Bronchitis
Show Explanation

Select an anamniote from the following:

Balochistan Mock 3
Biology
Kingdom Animalia
Phylums – porifera to chordata
A) Snake
Show Explanation
B) Parrot
Show Explanation
C) Frog
Show Explanation
D) Crocodile
Show Explanation

What is the most important structure between body and brain?

Balochistan Mock 3
Biology
Coordination and Control
Central Nervous System
A) Neck
Show Explanation
B) Spinal cord
Show Explanation
C) Blood vessels
Show Explanation
D) Skeleton
Show Explanation

Primordial soup is a set of hypothetical conditions on ancient earth first proposed by?

Balochistan Mock 3
Biology
Evolution
A) Dmitri Ivanovsky
Show Explanation
B) Dmitry Anuchin
Show Explanation
C) Nikolay Shatsky
Show Explanation
D) Alexander Oparin
Show Explanation

Which of the following organs serve no apparent purpose?

Balochistan Mock 3
Biology
Evolution
A) Non vestigial organs
Show Explanation
B) Homologous organs
Show Explanation
C) Analogous organs
Show Explanation
D) Vestigial organs
Show Explanation