In case of harmonic oscillator total energy remains

Punjab Mock 4
Physics
Oscillations and Simple Harmonic Motion
A) variable
Show Explanation
B) infinity
Show Explanation
C) constant
Show Explanation
D) zero
Show Explanation

The angular measurement is known as _____ measurement

Punjab Mock 4
Physics
Circular Motion & Momentum
A) parameter
Show Explanation
B) area
Show Explanation
C) circumference
Show Explanation
D) all of these
Show Explanation

In Double Slit experiment, the fringe spacing of the diffracted rays increases when:

UHS 2019
Physics
Optics, Nature of Light and Optical Instruments
Young’s Double Slit Experiment
A) the wavelength of the diffracted rays increases
Show Explanation
B) the distance between the slits increases
Show Explanation
C) the distance from mid points of the slits to the central of the fringe on the screen increases
Show Explanation
D) the distance between the screen and the slits decreases
Show Explanation

Laser beam can be used to generate three-dimensional image of object in a process called:

Punjab Mock 4
Physics
Atomic Spectra
Laser
A) Computed technology
Show Explanation
B) Computed tomography
Show Explanation
C) Holography
Show Explanation
D) Computerized axial tomography
Show Explanation

Which one of the following is not electromagnetic in nature.

Punjab Mock 4
Physics
Atomic Spectra
A) X-rays
Show Explanation
B) Gamma rays
Show Explanation
C) Cathode rays
Show Explanation
D) Infrared rays
Show Explanation

In population inversion (Ruby Laser) atoms can reside in the excited state for:

Punjab Mock 4
Physics
Atomic Spectra
Laser
A) 10-11
Show Explanation
B) 10-8
Show Explanation
C) 10-3
Show Explanation
D) 10+3
Show Explanation

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

Punjab Mock 4
Physics
Atomic Spectra
Spectrum of Hydrogen Atom
A) Four
Show Explanation
B) Three
Show Explanation
C) Five
Show Explanation
D) One
Show Explanation

Which of the following is the proper way to study the sinusoidal waveform of voltage?

Punjab Mock 4
Physics
Magnetism and Electromagnetic Induction
Cathode Ray Oscilloscope
A) Voltage is connected to ‘Y’ input and time base is switched on
Show Explanation
B) Voltage is connected to ‘X’ input and time base is switched off
Show Explanation
C) Voltage is connected to ‘Y’ input and time base is switched off
Show Explanation
D) Voltage is connected to ‘X’ input and time base is switched on
Show Explanation

Which of the following statements about electromagnetic waves is/are correct?
(1) X-rays in vacuum travel faster than light waves in vacuum.
(2) The energy of X-ray photon is greater than that of a light photon
(3) Light can be polarised but X-ray cannot.

Punjab Mock 4
Physics
Atomic Spectra
A) 1 and 2
Show Explanation
B) 2 and 3
Show Explanation
C) 1, 2 and 3
Show Explanation
D) 2 only

Which set of the prefixes gives values in increasing order?

UHS 2014
Physics
Measurements
Physical Quantities
A) Pico, Mega, Kilo, Tera
Show Explanation
B) Pico, Micro, Mega, Giga
Show Explanation
C) Tera, Pico, Micro, Kilo
Show Explanation
D) Giga, Kilo, Milli, Nano
Show Explanation

For a certain organ pipe, three successive resonance frequencies are observed at 425, 595, and 765 Hz. The speed of the sound in air is 340 m/s. The pipe is:

Punjab Mock 4
Physics
Wave Motion and Sound
A) Closed pipe of length 1 m
Show Explanation
B) Closed pipe of length 2 m
Show Explanation
C) Open pipe of length 1 m
Show Explanation
D) Open pipe of length 2 m
Show Explanation

The de Broglie wavelength of a particle of mass 1 gram and velocity 100 ms-1 is:

Punjab Mock 4
Physics
Dawn of Modern Physics
A) 6.63 x 10-35
Show Explanation
B) 6.63 x 10-34
Show Explanation
C) 6.63 x 10-33
Show Explanation
D) 6.63 x 10-32
Show Explanation

Wavelength of X-rays is the order of:

Punjab Mock 4
Physics
Atomic Spectra
Inner Shell Transitions And Characteristic X-rays
A) 10-6 m
Show Explanation
B) 10-10 m
Show Explanation
C) 10-13 m
Show Explanation
D) 100 m
Show Explanation

Arshad is driving down 7th street, he drives 150m in 18s.
Assume he does not speed up or slow down, what is his speed:

Punjab Mock 4
Physics
Forces and Motion
A) 0.38m/s
Show Explanation
B) 126m/s
Show Explanation
C) 8.33m/s
Show Explanation
D) 58.33m/s
Show Explanation

A car is moving in a circular track of radius 20m at a constant speed of 20m/sec. Find the centripetal acceleration?

Punjab Mock 4
Physics
Circular Motion & Momentum
A) 20 m/s^2
Show Explanation
B) 40 m/s^2
Show Explanation
C) 30 m/s^2
Show Explanation
D) 10 m/s^2
Show Explanation

What is the output of the truth table?

UHS 2014
Physics
Electronics
Fundamental Logic Gates
A) A
Show Explanation
B) A AND C
Show Explanation
C) B
Show Explanation
D) NO CORRECT OPTION
Show Explanation

If ‘A’ is fundamental dimension of ampere then the dimension of magnetic field strength is:

Punjab Mock 4
Physics
Magnetism and Electromagnetic Induction
Magnetic Flux and Flux Density
A) [MT2A-2]
Show Explanation
B) [MT-²2AL²]
Show Explanation
C) [MT2A-2]
Show Explanation
D) [MT2A-2]
Show Explanation

Which one of the following is I-V curve of a junction diode?

Punjab Mock 4
Physics
Electronics
P-N Junction and its Characteristics
A) Option A
Show Explanation
B) Option B
Show Explanation
C) Option C
Show Explanation
D) Option D
Show Explanation

Three resistors each having value ‘R’ are connected as shown in figure. What is the equivalent resistance between ‘X’ and ‘Y’?

Punjab Mock 4
Physics
Current Electricity
Wire Wound Variable Resistors
A) 3R
Show Explanation
B) R
Show Explanation
C) R/3
Show Explanation
D) R3
Show Explanation

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

Punjab Mock 4
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

The number of diodes in bridge rectifier is

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

Some ice, at its melting point, is added to m kg of water at the initial temperature of 290K. The ice melts completely and the final temperature of the water is 273K. If c is the specific heat capacity of the water and L is the latent heat of fusion of ice, what is the minimum mass of ice that is required?

Punjab Mock 4
Physics
Heat and Thermodynamics
Kinetic Theory of Gases
A) 17mc/L
Show Explanation
B) L/17mc
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C) 17m/Lc
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D) 290m/Lc
Show Explanation

The force which can do no work on the body on which it acts:

Punjab Mock 4
Physics
Circular Motion & Momentum
A) Frictional force
Show Explanation
B) Elastic force
Show Explanation
C) Gravitattional force
Show Explanation
D) Centripetal force
Show Explanation

If ‘m’ is the mass, ‘c’ is the velocity of light and x = mc2, then dimensions of ‘x’ will be:

Punjab Mock 4
Physics
Dawn of Modern Physics
A) [LT-1]
Show Explanation
B) [ML2T-2]
Show Explanation
C) [MLT-1]
Show Explanation
D) [MLT-2]
Show Explanation

The image received of absorbed x rays is

Punjab Mock 4
Physics
Atomic Spectra
Inner Shell Transitions And Characteristic X-rays
A) inverted
Show Explanation
B) real
Show Explanation
C) any of a or b
Show Explanation
D) virtual
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:

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

When an ideal gas of constant mass is heated in a container of fixed volume, what is the reason for the increase in pressure of the gas?

Punjab Mock 4
Physics
Heat and Thermodynamics
First Law of Thermodynamics
A) The number of molecules per unit volume increases
Show Explanation
B) The molecules occupy greater volume of the container
Show Explanation
C) The average force per impact at the container wall increases
Show Explanation
D) The molecules collide with each other with greater force
Show Explanation

The wave in which crest and trough superimpose each other is ?

Punjab Mock 4
Physics
Wave Motion and Sound
A) Sound wave
Show Explanation
B) Light wave
Show Explanation
C) Stationary wave
Show Explanation
D) All of these
Show Explanation

Work done will be zero if angle between force and displacement is:

Punjab Mock 4
Physics
Work, Power & Energy
A) 0°
Show Explanation
B) 60°
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C) 270°
Show Explanation
D) 360°
Show Explanation

The range Of the projectile depends upon the velocity of the projection and the angle of the projection i.e 45. For a fixed velocity, when the angle of projection is larger than 45. Which of the following is correct?

Punjab Mock 4
Physics
Forces and Motion
Motion in Two Dimensions
A) The height attained by the projectile will be more but the range is less
Show Explanation
B) Both the height and the range attained by the projectile will be more.
Show Explanation
C) The height attained by the projectile will be less but the range is more.
Show Explanation
D) Both the height and the range attained by the projectile will be less.
Show Explanation

Which radiation passes through black body?

Punjab Mock 4
Physics
Dawn of Modern Physics
A) Alpha
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B) Gamma
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C) Beta
Show Explanation
D) White
Show Explanation

The speed of sound through a gas is measured as 340 m/s at pressure P1 and temperature T1. What will be the speed of sound if the pressure of a gas is doubled but the temperature is kept constant?

Punjab Mock 4
Physics
Wave Motion and Sound
A) 342 m/s
Show Explanation
B) 340 m/s
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C) 170 m/s
Show Explanation
D) 680 m/s
Show Explanation

Which of the following has zero average value in a plane electromagnetic wave:

Physics
Electromagnetic Waves
Production of electromagnetic waves
A) kinetic energy
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B) magnetic field
Show Explanation
C) electric field
Show Explanation
D) both (b) and (c)
Show Explanation

If a resistor having resistance ‘R’ is cut into three equal parts, then the
equivalent of parallel combination is:

Punjab Mock 4
Physics
Current Electricity
Wire Wound Variable Resistors
A) 6/R
Show Explanation
B) 3/R
Show Explanation
C) . R/9
Show Explanation
D) R/3

Show Explanation

When the length of simple pendulum is doubled, the ratio of its new time period to old time period is:

Punjab Mock 4
Physics
Oscillations and Simple Harmonic Motion
A) 3√2
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B) 1√2
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C) 2√2
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D) √2
Show Explanation

For projectile motion, in the absence of air resistance:

Punjab Mock 4
Physics
Forces and Motion
Motion in Two Dimensions
A) Horizontal acceleration is zero
Show Explanation
B) Vertical acceleration is zero
Show Explanation
C) Horizontal force is constant
Show Explanation
D) Vertical speed is constant
Show Explanation

The wavelength of the electromagnetic wave having frequency of 3 kHz will be?

Punjab Mock 4
Physics
Dawn of Modern Physics
A) 120 km
Show Explanation
B) 100 km
Show Explanation
C) 80 km
Show Explanation
D) 140 km
Show Explanation

The wavelength of the electromagnetic wave having frequency of 3 kHz will be?

Punjab Mock 4
Physics
Dawn of Modern Physics
A) 120 km
Show Explanation
B) 100 km
Show Explanation
C) 80 km
Show Explanation
D) 140 km
Show Explanation

A stone dropped from the roof of a building takes 4 s to reach the ground. The height of the building is:

Punjab Mock 4
Physics
Motion in Two Dimensions
A) 9.8 m
Show Explanation
B) 19.6 m
Show ExplanationA
C) 39.2 m
Show Explanation
D) 78.4 m
Show Explanation

Object A has a charge of 15 mC, and object B has a charge of 10 mC. Which statement is true about the electric forces on the objects?

Punjab Mock 4
Physics
Electrostatics
A) FAB = -3 FBA
Show Explanation
B) FAB = – FBA
Show Explanation
C) 3 FAB = – FBA
Show Explanation
D) -3 FAB = 2 FBA
Show Explanation

In a practical transformer mutual induction between primary and secondary coils takes place. In such transformer what can be deduced about the power.

Punjab Mock 4
Physics
Magnetism and Electromagnetic Induction
Transformers
A) Power output = Power input
Show Explanation
B) Power output > Power input
Show Explanation
C) Power output ≥ Power input
Show Explanation
D) Power output < Power input Show Explanation

Which feature of the following graph represents Young’s Modulus?

UHS 2014
Physics
Physics of Solids
A) Area under graph
Show Explanation
B) Gradient of the graph
Show Explanation
C) Reciprocal of the gradient
Show Explanation
D) Product of gradient and area of the curve.

Which of the following can be used to produce population inversion for the emission of Laser?

Punjab Mock 4
Physics
Atomic Spectra
Laser
A) Optical pumping
Show Explanation
B) Optical fibre
Show Explanation
C) Optical instrument
Show Explanation
D) Optical polarization
Show Explanation

The expression for centripetal force is given by:

Punjab Mock 4
Physics
Circular Motion & Momentum
A) mrω2
Show Explanation
B) m2v2/r2
Show Explanation
C) m2v2/r
Show Explanation
D) mv2/r2
Show Explanation

In a full-wave rectification, the number of diodes used are:

Punjab Mock 4
Physics
Electronics
Rectification
A) 1
Show Explanation
B) 2
Show Explanation
C) 3
Show Explanation
D) 4
Show Explanation

If the number of turns of a solenoid circular coil is doubled, but the current in the coil and radius of the coil remains the same, then what will be the magnetic flux density produced by the coil?

Punjab Mock 4
Physics
Magnetism and Electromagnetic Induction
Amperes Law and Determination of Flux Density
A) Magnetic flux density will be halved
Show Explanation
B) Magnetic flux density increases by different amount at different points
Show Explanation
C) Magnetic flux density remains unchanged
Show Explanation
D) Magnetic flux density will be doubled
Show Explanation

If electrons of charge ‘e’, with rest mass ‘m’, are accelerated through a potential difference ‘V’ and strike a metal target, then velocity of electrons is:

Punjab Mock 4
Physics
Current Electricity
A) Ve/m
Show Explanation
B) √(Ve/m)
Show Explanation
C) √(Ve/)2m
Show Explanation
D) √(2Ve/m)
Show Explanation

The formula for electric field strength is ‘E = F/Q’, where E is electric field strength and F is force and Q is charge. Which one of the following options gives the correct base units for electric field strength?

Punjab Mock 4
Physics
Electrostatics
A) kgms-3A-1
Show Explanation
B) kgs-2A-3
Show Explanation
C) kg2m-2s-3A
Show Explanation
D) ms-1A-3
Show Explanation

Due to current in a straight conductor the difference between magnetic field lines

Punjab Mock 4
Physics
Magnetism and Electromagnetic Induction
Force on a Current Carrying Conductor in a Uniform Magnetic Field
A) Increases away from conductor
Show Explanation
B) Decreases away from conductor
Show Explanation
C) Increases towards conductor
Show Explanation
D) Decreases and then increases towards conductor
Show Explanation

A radioactive isotope ‘W’ decays to ‘X’ which decays to ‘Y’ and ‘Y’ decays to ‘Z’ as represented by the figure below

What is the change in the atomic number from ‘W’ to ‘Z’?

Punjab Mock 4
Physics
Nuclear Physics
Radioactivity
A) Increase by 3
Show Explanation
B) Increase by 5
Show Explanation
C) Decrease by 3
Show Explanation
D) Decrease by 5
Show Explanation

A negatively charged particle initially at rest is placed in an electric field that varies from point to point. There are no other fields. Then:

Punjab Mock 4
Physics
Electrostatics
A) The particle moves along the electric line of force passing through it.
Show Explanation
B) The particle moves opposite to the electric line of force passing through it.
Show Explanation
C) The direction of acceleration of the particle is tangential to the electric line of force at every instant.
Show Explanation
D) The direction of acceleration of the particle is normal to the electric line of force at every instant.
Show Explanation

In simple harmonic motion, acceleration will be maximum, when object is at:

Punjab Mock 4
Physics
Oscillations and Simple Harmonic Motion
A) Maximum displacement from the mean position
Show Explanation
B) Center position
Show Explanation
C) Half of the maximum displacement from mean position
Show Explanation
D) Mean position
Show Explanation

The diagram shows a small magnet hanging on a thread near the end of a solenoid carrying a steady current ‘I’. What happens to the magnet as the iron core is inserted into the solenoid?

Punjab Mock 4
Physics
Magnetism and Electromagnetic Induction
Faradays and Lenz Law and Induced EMF
A) It moves towards solenoid and rotates through 180˚
Show Explanation
B) It moves towards the solenoid
Show Explanation
C) It moves away from solenoid
Show Explanation
D) It moves away from solenoid and rotates through 180˚
Show Explanation

Three 6 Ω are connected as shown in the diagram What is the resistance between points ‘A’ and ‘B’

Punjab Mock 4
Physics
Current Electricity
Wire Wound Variable Resistors
A) 6 Ω
Show Explanation
B) 16 Ω
Show Explanation
C) 4 Ω
Show Explanation
D) 2 Ω V
Show Explanation

The oscillating object overshoots the rest position due to:

Punjab Mock 4
Physics
Oscillations and Simple Harmonic Motion
A) restoring force
Show Explanation
B) inertia
Show Explanation
C) gravitational potential energy
Show Explanation
D) elastic potential energy
Show Explanation

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

Punjab Mock 4
Logical Reasoning
Logical Deduction
A) C
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B) E
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C) B
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D) V
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E) Q
Show Explanation

From the following which word does not belong to the others:

Punjab Mock 4
Logical Reasoning
Critical Thinking
A) Index
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B) Book
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C) Glossary
Show Explanation
D) Chapter
Show Explanation

Statement: Should children be prevented completely from watching television?

Arguments:

(I) No. We get vital information regarding education through television.

(II) Yes. It hampers the study of children.

(Ill) Yes. Young children are misguided by certain programmes featuring violence.

Punjab Mock 4
Logical Reasoning
Critical Thinking
A) Only I, II and Ill are strong
Show Explanation
B) Only I is strong
Show Explanation
C) Only I and III are strong
Show Explanation
D) Only I and II are strong
Show Explanation

Statements: No cities are countries. No countries are villages.

Conclusions:

(I) Some countries are cities.

(II) No villages are the city.

Punjab Mock 4
Logical Reasoning
Critical Thinking
A) Only conclusion (I) follows
Show Explanation
B) Only conclusion (II) follows
Show Explanation
C) Both conclusions follow
Show Explanation
D) Both of the conclusions do not follow
Show Explanation

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

Punjab Mock 4
Logical Reasoning
Letters and Symbols Series
A) 24
Show Explanation
B) 25
Show Explanation
C) 26
Show Explanation
D) 27
Show ExplanationA

Statement:
Should coal engines be replaced by electric engines in trains?

Arguments:
(I) Yes. Coal engines cause a lot of pollution.
(II) Yes. Electric engines are good on performance, easy to operate, and low on maintenance.
(III) No. Pakistan does not produce enough electricity to fulfill its domestic needs also.

Punjab Mock 4
Logical Reasoning
Course of Action
A) All arguments are strong
Show Explanation
B) Only arguments I and II are strong
Show Explanation
C) Only arguments II and III are strong
Show Explanation
D) Only arguments I and III are strong
Show Explanation

Which one of the following is the correct equation of 1st ionization of sulphuric acid?

Punjab Mock 4
Chemistry
Chemical Bonding
A) H2SO4(aq) + H2O(l) –> 2H+ + SO42-
Show Explanation
B) H2SO4(aq) + H2O(l) –> H+(aq) + HSO4-
Show Explanation
C) H2SO4(aq) + H2O(l) –> 2H+ + SO42-
Show Explanation
D) H2SO4(aq) + H2O(l) –> H3O+ + SO42-
Show Explanation

The number of bonds in nitrogen molecule is

Punjab Mock 4
Chemistry
Chemical Bonding
A) One σ and two π
Show Explanation
B) One σ and one π
Show Explanation
C) Three σ only
Show Explanation
D) Two σ and one π
Show Explanation

Sublimation is used to purify

UHS 2010
Chemistry
A) Ammonium sulphate
Show Explanation
B) Sodium chloride
Show Explanation
C) Benzoic acid
Show Explanation
D) Lead carbonate
Show Explanation

A spontaneous process is

Punjab Mock 4
Chemistry
Thermochemistry
A) Unidirectional and irreversible
Show Explanation
B) Irreversible and a real process
Show Explanation
C) Unidirectional and a real process
Show Explanation
D) All of the above
Show Explanation

The following dipeptide is called:

Punjab Mock 4
Chemistry
Carboxylic Acids and its Derivatives
A) Glycyl glycine
Show Explanation
B) Glycyl alanine
Show Explanation
C) Alaninyl alanine
Show Explanation
D) Alaninyl glycine
Show Explanation

In ‘H-F’ bond electronegativity difference is ‘1.9’. What is the type of this bond?

Punjab Mock 4
Chemistry
Chemical Bonding
Electron Affinity and Electronegativity
Covalent Bond
A) Polar covalent bond
Show Explanation
B) Non-polar covalent bond
Show Explanation
C) Pi (π) bond
Show Explanation
D) Co-ordinate covalent bond
Show Explanation

A sample of Neon is found to exist as 20Ne, 21Ne, 22Ne. Mass spectrum of ‘Ne’ is as follows:

What is the relative atomic mass (Ar value) of Neon?

Punjab Mock 4
Chemistry
Stoichiometry
Mole
A) 20.18
Show Explanation
B) 20.28
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C) 20.10
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D) 20.22
Show Explanation

With the increase in the value of Principal Quantum Number ‘n’, the shape of the s-orbitals remains the same although their sizes

Punjab Mock 4
Chemistry
Atomic Structure
Plancks Quantum Theory
A) Decrease
Show Explanation
B) Increase
Show Explanation
C) Remain the same
Show Explanation
D) May or may not remain the same
Show Explanation

If halogenoalkanes are mixed with an excess of ethanoic ammonia and heated under pressure, amine are formed. Which amine is formed in the following reaction?
CH2CH3Br + NH3 Amine

Punjab Mock 4
Chemistry
Alkyl Halides and Amines
Introduction to Alkyl Halides and Amines
A) CH3―CH2―NH―CH2―CH3
Show Explanation
B) CH3―CH2―NH2
Show Explanation
C) CH3―CH2―CH2―NH2
Show Explanation
D) H2N―CH2―CH2―NH2
Show Explanation

Starch is a polymer of:

Punjab Mock 4
Chemistry
Macromolecules
A) β–D–glucose
Show Explanation
B) α––glucose
Show Explanation
C) γ–D–glucose
Show Explanation
D) α–L–glucose
Show Explanation

The purity of a substance can be identified by

UHS 2010
Chemistry
A) Sublimation
Show Explanation
B) Filtration
Show Explanation
C) Chromatography
Show Explanation
D) Solvent extraction
Show Explanation

In basic conditions, amino acid exists in which of the following forms?

Punjab Mock 4
Chemistry
Carboxylic Acids and its Derivatives
A) A
Show Explanation
B) B
Show Explanation
C) C
Show Explanation
D) D

A student mixed ethyl alcohol with a small amount of sodium dichromate and added it to the hot solution of dilute sulphuric acid. A vigorous reaction took place. He distilled the product formed immediately. What was the product?

Punjab Mock 4
Chemistry
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
A) Acetone
Show Explanation
B) Acetic acid
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C) Dimethyl ether
Show Explanation
D) Acetaldehyde
Show Explanation

Which one of the following noble gases are used for providing an inert atmosphere for welding?

Punjab Mock 4
Chemistry
s and p Block Elements
Introduction to s and p Block Elements
A) Helium
Show Explanation
B) Neon
Show Explanation
C) Argon
Show Explanation
D) Krypton
Show Explanation

The angle between unhybridized p-orbital and three sp2 hybrid orbitals of each carbon atom in ethene is

Punjab Mock 4
Chemistry
Chemical Bonding
VSEPR Theory
A) 120°
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B) 90°
Show Explanation
C) 109.5°

Show Explanation
D) 180°
Show Explanation

The principal energy storage carbohydrate in animals is:

Punjab Mock 4
Chemistry
Macromolecules
A) Glucose
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B) Starch
Show Explanation
C) Protein
Show Explanation
D) Glycogen

‘∆H’ will be given a negative sign in

Punjab Mock 4
Chemistry
Thermochemistry
Laws of Thermodynamics
A) Exothermic reactions

Show Explanation
B) Decomposition reactions
Show Explanation
C) Dissociation reaction
Show Explanation
D) Endothermic reactions
Show Explanation

The structural formula of the product of reaction of acetone with 2,4-dinitrophenyl
hydrazine is:

Punjab Mock 4
Chemistry
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
A) A
Show Explanation
B) B
Show Explanation
C) C
Show Explanation
D) D

Solubility of Ce2(SO4)3

Punjab Mock 4
Chemistry
Chemical Equilibrium
A) Increases with temperature
Show Explanation
B) Decreases with temperature
Show Explanation
C) Shows exceptional behavior
Show Explanation
D) Remains constant
Show Explanation

The number of molecules in 22.4 dm3 of H2 gas at 0 °C and 1 atm are

Punjab Mock 4
Chemistry
Stoichiometry
Mole
A) 60.2 x 10^23
Show Explanation
B) 6.02 x 1022
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C) 6.02 x 1025
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D) 6.02 x 1023
Show Explanation

An organic compound has the empirical formula C3H3O if the molar mass of the compound is 110.15 g.mol-1. The molecular formula of this organic compound is: (A, of C=12, H=1.008
and O=16)

Punjab Mock 4
Chemistry
Stoichiometry
Mole
A) C6H6O2
Show Explanation
B) C3H3O
Show Explanation
C) C9H9O3
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D) C6H6O3
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In the structure of NaCl, each Na+ is surrounded by _____ Cl- ions.

Punjab Mock 4
Chemistry
States of Matter – Gases, Liquids and Solids
A) Four
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B) Eight
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C) Five
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D) Six
Show Explanation

Which type of force is present in gasoline?

Punjab Mock 4
Chemistry
Chemical Bonding
A) Dipole-dipole forces
Show Explanation
B) Dipole-induced dipole forces
Show Explanation
C) London dispersion forces
Show Explanation
D) Hydrogen bonding
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The standard enthalpy of solution of NH4Cl is ____________ kJmol-1.

Punjab Mock 4
Chemistry
Thermochemistry
A) +16.2
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B) -25.0
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C) +4.98
Show Explanation
D) +26.0
Show Explanation

Which one of the following products is obtained when sulphur trioxide is absorbed in
concentrated sulphuric acid?

Punjab Mock 4
Chemistry
Chemical Equilibrium
State of Chemical Equilibrium
A) Oleum
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B) Aqua Regia
Show Explanation
C) Hydrogen sulphide
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D) Sulphate ion
Show Explanation

Which one of the following is the correct chemical reaction for Ammonia formation
by Haber process?

Punjab Mock 4
Chemistry
Chemical Equilibrium
A) N2(g) + H2(g) ⇌ 2NH(g)
Show Explanation
B) 2N(g) + 3H2(g) ⇌ NH3(g)
Show Explanation
C) 2N(g) + 3H2(g) ⇌ 2NH3(g)
Show Explanation
D) N2(g) + 3H2(g) ⇌ 2NH3(g)

Show Explanation

The reaction between fats and caustic soda is called:

Punjab Mock 4
Chemistry
Macromolecules
A) Hydrogenolysis
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B) Fermentation
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C) Esterification
Show Explanation
D) Saponification
Show Explanation

Which one of the following groups is indicated when HCl is formed by reaction of
ethanol with phosphorus pentachloride

Punjab Mock 4
Chemistry
Alcohol, Phenols, and Ethers
A) Amino group
Show Explanation
B) Hydroxyl group
Show Explanation
C) Halide group
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D) Hydride group
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The formula of 2, 4, 6-tribromo phenol is

Punjab Mock 4
Chemistry
Alcohol, Phenols, and Ethers
A) A
Show Explanation
B) B
Show Explanation
C) C
Show Explanation
D) D

Ethyl butyrate and butyl butanoate are esters with the flavor of:

Punjab Mock 4
Chemistry
Carboxylic Acids and its Derivatives
A) Pear
Show Explanation
B) Banana
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C) Pineapple
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D) Apple
Show Explanation

The inter-ionic distance in a crystal lattice of KCl is

Punjab Mock 4
Chemistry
States of Matter – Gases, Liquids and Solids
A) 314 pm
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B) 181 pm
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C) 95 pm
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D) 300 pm
Show Explanation

Correct order of boiling points of the given liquids is:

Punjab Mock 4
Chemistry
States of Matter – Gases, Liquids and Solids
Boiling Point and Vapor Pressure
A) H2O > HF > HCl > NH3
Show Explanation
B) HF > H2O > HCl > NH3
Show Explanation
C) H2O > HF > NH3 > HCl

Show Explanation
D) HF > H2O > NH3 > HCl
Show Explanation

Which one of the following mathematical expressions represents the Avogadro’s law?

Punjab Mock 4
Chemistry
States of Matter – Gases, Liquids and Solids
A) Option A
Show Explanation
B) Option B
Show Explanation
C) Option C
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D) Option D
Show Explanation

Which one is the highest power multiple?

Punjab Mock 4
Physics
A) Giga
Show Explanation
B) Tera
Show Explanation
C) Mega
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D) Deca
Show Explanation

The Kc has following units for the reaction H2(g) + I2(g) ⇋ 2HI (g)

Punjab Mock 4
Chemistry
Chemical Equilibrium
A) mol3dm-6
Show Explanation
B) moldm-3
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C) mol-3dm6
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D) No unit
Show Explanation

Electronic configuration of Manganese (Mn) is

Punjab Mock 4
Chemistry
d and f Block Elements
A) A
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B) B
Show Explanation
C) C
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D) D
Show Explanation

Macromolecules are described as large molecules built up from small repeating units called:

Punjab Mock 4
Chemistry
Macromolecules
A) Monomers
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B) Isomers
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C) Metamers
Show Explanation
D) Tautomers
Show Explanation

The percentage of carbon in different types of iron products is in the order of

UHS 2014
Chemistry
d and f Block Elements
A) Cast Iron > Wrought Iron > Steel
Show Explanation
B) Wrought Iron > Steel > Cast Iron
Show Explanation
C) Cast Iron > Steel > Wrought Iron
Show Explanation
D) Cast Iron > Steel > Wrought Iron
Show Explanation

The relative energies of 4s, 4p and 3d orbitals are in the order:

Punjab Mock 4
Chemistry
Atomic Structure
Sub Atomic Particles and Their Discoveries
A) 3d < 4p <4s Show Explanation B) 4s < 3d < 4p Show Explanation C) 4p < 4s < 3d Show Explanation D) 4p < 3d < 4s Show Explanation

Alanine is an aminoacid which showsneutral effect on litmus paper,the formula of alanine may be

Punjab Mock 4
Chemistry
Carboxylic Acids and its Derivatives
A) A
Show Explanation
B) B
Show Explanation
C) C
Show Explanation
D) D
Show Explanation

The root mean square velocity of gases is inversely proportional to the square root of their:

Punjab Mock 4
Chemistry
States of Matter – Gases, Liquids and Solids
A) Molar mass
Show Explanation
B) Temperature
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C) Pressure
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D) Volume
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If we are given the mass of one substance, we can calculate volume of other substances and vice a versa with the help of balanced chemical equation. This is called

Punjab Mock 4
Chemistry
Introduction to Fundamental Concepts of Chemistry
A) Mass-mass relationship
Show Explanation
B) Mass-mole relationship
Show Explanation
C) Mole-volume relationship
Show Explanation
D) Mass-volume relationship
Show Explanation

Primary, secondary and tertiary alcohols can be identified and distinguished by

Punjab Mock 4
Chemistry
Alcohol, Phenols, and Ethers
A) Lucas test
Show Explanation
B) Iodoform test
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C) Baeyer’s test
Show Explanation
D) Silver mirror test
Show Explanation

Which one of the following molecules has zero dipole moment?

Punjab Mock 4
Chemistry
Chemical Bonding
A) NH3
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B) CHCl3
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C) BF3
Show Explanation
D) H2O
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Which one of the following pair of compounds is cis and trans isomers of each
other?

Punjab Mock 4
Chemistry
Hydrocarbons
Introduction to Hydrocarbons
A) A
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B) B
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C) C
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D) D
Show Explanation

Plasma is the ionized gas mixture which consists of:

Punjab Mock 4
Chemistry
States of Matter – Gases, Liquids and Solids
A) Ions and electrons
Show Explanation
B) Electrons and neutral atoms
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C) Electrons, ions and neutral atoms
Show Explanation
D) Ions and neutral atoms
Show Explanation

When ethanoic acid reacts with methylamine, an amide is formed. What is the structure of the amide formed?

Punjab Mock 4
Chemistry
Alkyl Halides and Amines
Introduction to Alkyl Halides and Amines
A) A
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B) B
Show Explanation
C) C
Show Explanation
D) D
Show Explanation

When 8 grams (4 moles) of H2 react with 2 moles of O2 , how many moles of water will be formed?

Punjab Mock 4
Chemistry
Stoichiometry
Mole
A) 5
Show Explanation
B) 4
Show Explanation
C) 6
Show Explanation
D) 3
Show Explanation

Organic compound containing both amino and carboxyl group is known as:

Punjab Mock 4
Chemistry
Carboxylic Acids and its Derivatives
A) Amino acid
Show Explanation
B) Fatty acid
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C) Saccharide
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D) Amide
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The pH of acid rain is

UHS 2014
Chemistry
Environmental Chemistry
Factors affecting Water Quality
Introduction and Types of Pollution
A) 7
Show Explanation
B) Between 5 and 7
Show Explanation
C) Below 5
Show Explanation
D) Between 7 and 14
Show Explanation

The skeletal formula of dipeptide formed between aspartic acid and phenylalanine is given below: How many functional groups are present in its formula?

Punjab Mock 4
Chemistry
Carboxylic Acids and its Derivatives
A) 5
Show Explanation
B) 2
Show Explanation
C) 4
Show Explanation
D) 3
Show Explanation

Which one of the following alcohol is indicated by formation of yellow crystals in the
Iodoform test?

Punjab Mock 4
Chemistry
Alcohol, Phenols, and Ethers
A) MethanoL
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B) Ethanol
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C) Butanol
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D) Propanol
Show Explanatio

Which of the following structures is not an alpha amino acid?

Punjab Mock 4
Chemistry
Carboxylic Acids and its Derivatives
A) A
Show Explanation
B) B
Show Explanation
C) C
Show Explanation
D) D
Show Explanation

Select the incorrect segment:
Your argument is simply abstruse as there is no clarity of thought and coherence in ideas and it also lack vision.

Punjab Mock 4
English
Identify errors in sentence
A) Is
Show Explanation
B) Of
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C) In
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D) Lack
Show Explanation

Identify the incorrect segment:

The old man was sitting quite bamboozled when the swindler deprived him from his pension money by his evil tricks.

Punjab Mock 4
English
Identify errors in sentence
A) Quite
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B) From
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C) By
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D) His
Show Explanation

Identify the incorrect segment:

The prime minister fired a broadside at the opposition leaders. A few of his remarks were not up at the mark.

Punjab Mock 4
English
Identify errors in sentence
A) of
Show Explanation
B) were
Show Explanation
C) up
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D) at
Show Explanation

All the _______ and ceremony of the royal wedding was telecast on the national television circuit.

Punjab Mock 4
English
Fill in the blank
A) Festival
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B) Romp
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C) Pomp
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D) Happiness
Show Explanation

Identify the incorrect segment:

Amjad was not conscious to the aberration he had committed in the public meeting. It was disliked by all and sundry.

Punjab Mock 4
English
Identify errors in sentence
A) to
Show Explanation
B) the
Show Explanation
C) in
Show Explanation
D) by
Show Explanation

Identify the incorrect segment:

Late Agha Shahi was an outstanding genius in the international affairs. He was gifted of the acumen to judge the future events, judge the future events in advance.

Punjab Mock 4
English
Identify errors in sentence
A) in
Show Explanation
B) of
Show Explanation
C) to
Show Explanation
D) in
Show Explanation

SPOT THE ERROR: In the following sentences, some segments of each sentence are underlined.Your task is to identify that underlined segment of the sentence, which contains the mistake that needs to be corrected.

The study of population growth indicates one of the greatest paradox of our time.

Punjab Mock 4
English
Identify errors in sentence
A) The study
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B) Population growth
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C) One of the
Show Explanation
D) Paradox
Show Explanation

Things have got out of hand; we must take steps to _________ the situation

Punjab Mock 4
English
Fill in the blank
A) Rectify
Show Explanation
B) Pacify
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C) Purify
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D) Testify
Show Explanation

SPOT THE ERROR: In the following sentences, some segments of each sentence are underlined. Your task is to identify that underlined segment of the sentence, which contains the mistake that needs to be corrected.

When a low-wage category worker finds he has to maintain a large family, his expenses may exceeds his income.

Punjab Mock 4
English
Identify errors in sentence
A) When a low-wage
Show Explanation
B) Worker finds
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C) Maintain a large family
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D) Exceeds his income
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George Orwell’s Animal Farm is a stinging ________ on the Russian revolution

Punjab Mock 4
English
Fill in the blank
A) Myth
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B) Satire
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C) Fallacy
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D) Legend
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He _____ the incident to the back of his mind.

Punjab Mock 4
English
Fill in the blank
A) Revered
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B) Regulated
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C) Reagitated
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D) Relegated
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My advice had no ______________ on him.

Punjab Mock 4
English
Fill in the blank
A) Effect
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B) Affect
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C) Influence
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D) Impression
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He _____ the day they had bought such a large house.

Punjab Mock 4
English
Fill in the blank
A) Hues
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B) Rows
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C) Rues
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D) Dues
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She managed to __________ a ticket for the cricket match.

Punjab Mock 4
English
Fill in the blank
A) Procure
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B) Obscure
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C) Improvise
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D) Preclude
Show Explanation

SPOT THE ERROR: In the following sentences, some segments of each sentence are underlined.Your task is to identify that underlined segment of the sentence, which contains the mistake that needs to be corrected.

Suddenly he stopped at the edge of the meadow, taking his pocket knife from his pocket, and cut a wisp of alfalfa.

Punjab Mock 4
English
Identify errors in sentence
A) Suddenly he stopped
Show Explanation
B) Taking his pocket knife
Show Explanation
C) His pocket
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D) Cut a wisp of alfalfa
Show Explanation

Please____________the door after you.

Punjab Mock 4
English
Fill in the blank
A) Close
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B) Shut
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C) Leave
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D) Knock
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Do not lose heart,it is just a __________ in the teacup.

Punjab Mock 4
English
Fill in the blank
A) Wind
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B) Cyclone
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C) Blast
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D) Storm
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Pakistan __________ from voting against Iran in the United Nations.

Punjab Mock 4
English
Fill in the blank
A) Prevented
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B) Detained
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C) Abstained
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D) Refuse
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Which one of the following statements best describes the function of sinoatrial node?

Punjab Mock 4
Biology
Transport
A) It sends out electrical impulses to atrial muscles causing both atria to contract.
Show Explanation
B) It consists of small number of diffusely oriented cardiac fibres
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C) It sends out electrical impulses to ventricular muscles causing both ventricles to contract
Show Explanation
D) It is present at upper end of left atrium.
Show Explanation

When the division of cells is in three planes, the arrangement is known as

Punjab Mock 4
Biology
Kingdom Prokaryote
Size and Structure of Bacteria
A) Diplococcus
Show Explanation
B) Sarcina
Show Explanation
C) Streptococcus
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D) Staphylococcus
Show Explanation

The function of nucleolus is to make:

Punjab Mock 4
Biology
Cell Structure and Function
Cytoplasm and Organelles
A) rDNA
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B) Ribosomes
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C) RNA
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D) Chromosomes
Show Explanation

Which of the following is purine:

Punjab Mock 4
Biology
Biological Molecules
Nucleic Acid
A) Guanine
Show Explanation
B) Cytosine
Show Explanation
C) Thiamine
Show Explanation
D) Uracil
Show Explanation

Breakdown of endometrium during menstruation is due to

Punjab Mock 4
Biology
Reproduction
Reproduction in Females
A) Increase in Level of LH
Show Explanation
B) Decrease in Level of Progesterone
Show Explanation
C) Increase in Level of Progesterone
Show Explanation
D) Increase in Level of Oestrogen
Show Explanation

The living cells of cartilage are called:

Punjab Mock 4
Biology
Support and Movement
A) Chrondrocytes
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B) Osteoblasts
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C) Ostecytes
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D) Osteoclasts
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Hormones are the organic compounds of varying structural complexity. Which of the following is not a function or property of these compounds?

Punjab Mock 4
Biology
Coordination and Control
Endocrine System and its Hormones
A) They initiate new biochemical reactions
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B) They are poured directly into blood
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C) They may be proteins
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D) They affect target cells
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End products of yeast fermentation, bacterial fermentation and anaerobic respiration are:

Punjab Mock 4
Biology
Bioenergetics
A) Citric acid, lactic acid, carbon dioxide and water
Show Explanation
B) Ethyl alcohol, citric acid and carbon dioxide
Show Explanation
C) Ethyl alcohol, lactic acid, carbon dioxide and water
Show Explanation
D) Methanol, lactic acid and citric acid
Show Explanation

The flow of lymph in lymphatic vessels is maintained by:

Punjab Mock 4
Biology
Transport
A) Heart, activity of smooth muscles and valves
Show Explanation
B) Activity of skeletal muscles, heart and breathing movements
Show Explanation
C) Breathing movements, activity of skeletal muscles and valves
Show Explanation
D) Exercise, breathing movements and heart
Show Explanation

In human beings, what is the function of amylase in digestion?

Punjab Mock 4
Biology
Nutrition
Digestion and Absorption
A) Digestion of triglycerides
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B) Digestion of lipids
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C) Digestion of all types of food
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D) Digestion of carbohydrates
Show Explanation

Fungi store surplus food in the form of

UHS 2010
Biology
Kingdom Fungi
Nutrition in Fungi
A) Cellulose
Show Explanation
B) Glycogen
Show Explanation
C) Starch
Show Explanation
D) Both B and C
Show Explanation

The cavity between body wall and alimentary canal is:

Punjab Mock 4
Biology
Kingdom Animalia
Classification according to Coelem
A) Coelom
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B) Mesoderm
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C) Endoderm
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D) Mesoglea
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The central metabolic station and clearing house of a body is:

Punjab Mock 4
Biology
Homeostasis
A) Liver
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B) Kidney
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C) Nephron
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D) Glomerulus
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Expiration in human beings is carried out by:

Punjab Mock 4
Biology
Gaseous Exchange
A) Contraction of lungs
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B) Contraction of intercostal membrane
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C) Relaxation of intercostal and diaphragm muscles
Show Explanation
D) Contraction of diaphragm muscles
Show Explanation

A type of cell in human testes which produces testosterone is called:

Punjab Mock 4
Biology
Reproduction
Reproduction in Males
A) Interstitial Cells
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B) Germ Cells
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C) Sertoli Cells
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D) Spermatocytes
Show Explanation

During muscle contraction:

Punjab Mock 4
Biology
Support and Movement
A) I-band shortens
Show Explanation
B) Myosin filaments shorten
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C) Actin filaments shorten
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D) Z-line disappears
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Metabolic waste from metabolism of nucleic acid is:

Punjab Mock 4
Biology
A) Uric acid
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B) Creatine
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C) Urea
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D) Creatinine
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The process by which unwanted structures within the cell are engulfed and digested within the lysosome is known as:

Punjab Mock 4
Biology
Cell Structure and Function
Cytoplasm and Organelles
A) Endocytosis
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B) Exocytosis
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C) Hydrolysis
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D) Autophagy
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Trypanosoma is a human parasite causing

Punjab Mock 4
Biology
Kingdom Protista
Diversity and major groups of protista
Importance of Protists
A) African sleeping sickness
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B) European sleeping sickness
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C) Indonesian sleeping sickness
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D) American sleeping sickness
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Reflexes and instincts type of behaviours respond to which combination/s?

Punjab Mock 4
Biology
Coordination and Control
Nature and Types of Behaviour
A) Biological rhythms, territorial, courtship and development
Show Explanation
B) The responses that do produce same result in different conditions
Show Explanation
C) Aggression, mating and altruism
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D) The responses that are predetermined like differentiation.
Show Explanation

Type of respiration which involves step by step breakdown of carbon chain molecules in the cell is called:

Punjab Mock 4
Biology
Gaseous Exchange
A) External respiration
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B) Cellular respiration
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C) Pulmonary respiration
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D) Cutaneous respiration
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Which one of following factors is directly proportional to oxygen carrying capacity of haemoglobin:

Punjab Mock 4
Biology
Transport
A) Carbon dioxide
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B) Temperature
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C) pH
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D) Light
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Oogonia are produced in the germ cells of:

Punjab Mock 4
Biology
Reproduction
Reproduction in Females
A) Both Uterus and Cervix
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B) Cervix
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C) Uterus
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D) Ovary
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Widespread epidemic disease, influenza is caused by:

Punjab Mock 4
Biology
Bio-diversity | Variety of Life
A) DNA virus
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B) RNA enveloped virus
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C) DNA enveloped virus
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D) RNA virus
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The term which is employed to the loss of appetite due to fear of becoming obese is:

Punjab Mock 4
Biology
Nutrition
A) Obesity
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B) Anorexia nervosa
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C) Dyspepsia
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D) Bulimia nervosa
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Which of the following is a keto sugar:

Punjab Mock 4
Biology
Biological Molecules
Carbohydrates
A) Glyceraldehyde
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B) Dihydroxy-acetone
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C) Ribose
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D) Glucose
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All coenzymes are derived from:

Punjab Mock 4
Biology
A) Proteins
Show Explanation
B) Nucleic acids
Show Explanation
C) Carbohydrates
Show Explanation
D) Vitamins
Show Explanation

The _______ model of plasma membrane suggests that proteins are embedded in lipid bilayer:

Punjab Mock 4
Biology
Cell Structure and Function
Plasma Membrane
A) Unit membrane
Show Explanation
B) Fluid mosaic
Show Explanation
C) Permeable
Show Explanation
D) Ultracentrifuge
Show Explanation

Larvae of which group are similar to chordates?

Punjab Mock 4
Biology
Kingdom Animalia
Phylums – porifera to chordata
A) Echinodermata
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B) Annelida
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C) Arthropoda
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D) Nematoda
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The view that active site of an enzyme is flexible and when a substrate combines with it, cause changes in enzyme structure is known as:

Punjab Mock 4
Biology
A) Lock & key model
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B) Induce fit model
Show Explanation
C) Sliding filament model
Show Explanation
D) Specificity model
Show Explanation

An association between two organisms benefiting both is called

Punjab Mock 4
Biology
Kingdom Fungi
A) Commensalism
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B) Parasitism
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C) Predation
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D) Symbiosis
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The muscles that control urine in bladder are known as:

Punjab Mock 4
Biology
Support and Movement
A) Striated muscles
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B) Smooth muscles
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C) Sphincter muscles
Show Explanation
D) Circular muscles
Show Explanation

Where is the ileocolic sphincter located in your body?

Punjab Mock 4
Biology
Nutrition
Digestion and Absorption
A) At the junction of esophagus and stomach
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B) At the junction of stomach and small intestine
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C) At the junction of ileum and large intestine
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D) At the junction of small intestine and large intestine
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Respiratory centre is located in

Punjab Mock 4
Biology
Coordination and Control
A) Cerebrum
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B) Cerebellum
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C) Medulla
Show Explanation
D) Hypothalamus
Show Explanation

Which one of the following vitamins is produced by microflora of large intestine?

Punjab Mock 4
Biology
Nutrition
Digestion and Absorption
A) Vitamin K
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B) Vitamin C
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C) Vitamin A
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D) Vitamin D
Show Explanation

The production of genetically identical copies of organisms by asexual reproduction is called:

Punjab Mock 4
Biology
Reproduction
Reproduction in Animals
A) Genetic engineering
Show Explanation
B) Integrated disease management
Show Explanation
C) Hydroponic culture technique
Show Explanation
D) Cloning
Show Explanation

Newly produced cells/individuals which are identical in each other are known as

Punjab Mock 4
Biology
Reproduction
Reproduction in Animals
A) Genetically Modified
Show Explanation
B) Transgenic Animals
Show Explanation
C) Transgenic Bacteria
Show Explanation
D) Clones
Show Explanation

In prokaryotic cell, wall strengthening material is

Punjab Mock 4
Biology
Cell Structure and Function
Prokaryotic and Eukaryotic Cells
A) Cellulose
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B) Silica
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C) Chitin
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D) Peptidoglycan
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_____ is activated to_____ by Enterokinase/enteropeptidase enzyme secreted by the lining of duodenum:

Punjab Mock 4
Biology
Nutrition
Digestion and Absorption
A) Pepsinogen, Pepsin
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B) Pepsinogen, Trypsin
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C) Trypsinogen, Trypsin
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D) Chymotrypsinogen, Chymotrypsin
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__________ forms weak linkages with enzymes and their effect can be neutralized completely or partly by an increase in the concentration of the substrate.

Punjab Mock 4
Biology
A) Only competitive Inhibitors
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B) Reversible inhibitors
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C) Irreversible inhibitors
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D) Both reversible and irreversible inhibitors
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A neurological condition characterised by involuntary tremors, diminished motor activity and rigidity is called

Punjab Mock 4
Biology
Coordination and Control
Disorders of the Nervous System
A) Epilepsy
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B) Parkinson’s Disease
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C) Alzheimer’s Disease
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D) Cerebellar Tumours
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The simplest independent unit of life is known as:

Punjab Mock 4
Biology
Cell Structure and Function
Introduction to Cell and it’s theory
A) Bacterial colony
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B) Cell
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C) Chloroplast
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D) DNA
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