UHS MDCAT Past Paper 2018

Created by Ali Durrani

UHS MDCAT 2018 Past Paper

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1 / 220

A signal of -80 mV is applied to the inverting terminal of the amplifier while the non inverting terminal is grounded. The gain of the amplifier is 25 using Rin(R1) equal to 3 ohms and Rf(R2) equal to 75 Ohms. What would be the value of the output signal?

UHS 2018
Physics
Electronics
Op-Amps
Elimination Tool:

A) 200 mV

B) -3 V

C) 2 V

D) 3 V

2 / 220

A stone of mass 2.0 kg is dropped from a rest position 5.0 m above the ground. What is its velocity at a height of 3.0 m above the ground?

UHS 2018
Physics
Forces and Motion
Equations of Uniformly Accelerated Motion
Elimination Tool:

A) 12.5 m/s

B) 6.3m/s

C) 9.3 m/s

D) 16.0 m/s

3 / 220

A neutron having mass equal to a proton (mp = 1.6 x 10-27 kg) is moving in a magnetic field of intensity 1.20 x 10-3 T with a speed of 2.0 x 107 ms-1 . What is the maximum force experienced by the neutron?

UHS 2018
Physics
Magnetism and Electromagnetic Induction
Determination of e/m of an Electron
Elimination Tool:

A) 3.84 x 10-15N

B) 0

C) 3.84 x 10-12N

D) 38.4 x 10-15N

4 / 220

Electric potential due to 2uC charge at distance of one meter is equal to:

UHS 2018
Physics
Electrostatics
Elimination Tool:

A) 18 x 104volt

B) 1.8 x 106volt

C) 1.8 x 109volt

D) 1.8 x 104volt

5 / 220

The rate at which work is being done is called:

UHS 2018
Physics
Work, Power and Energy
Work Done by Constant Force and Variable Forces
Elimination Tool:

A) Power

B) Energy

C) Density

D) Force

6 / 220

The different magnitudes of same physical quantities are measured by comparing them to:

UHS 2018
Physics
Measurements
Precision and Accuracy
Elimination Tool:

A) Available scale

B) Standard size

C) Each other

D) Other physical quantities

7 / 220

Light photons, each of energy 3.5 x 10-19J falls on the cathode of a photocell. The current through the cell is reduced to zero by taking the cathode to a potential +0.25 V relative to anode. The work function of the cathode is:

UHS 2018
Physics
Dawn of Modern Physics
Elimination Tool:

A) 3.35 x 10-19J

B) 3.5 x 10-19J

C) 3.25 x 10-19J

D) 3.1 x 10-19J

8 / 220

The de Broglie wavelength of an electron travelling with a speed of 1.0 x 107m/s is equal to, (h=6.6 x 10-34 Js and me= 9.1 x 10-31 kg)

UHS 2018
Physics
Dawn of Modern Physics
Elimination Tool:

A) 7.3 x 1011m

B) 7.3 x 108m

C) 7.3 x 10-11m

D) 7.3 x 10-13m

9 / 220

Which material will follow the below stress-strain curve.

UHS 2018
Physics
Physics of Solids
Elastic Moduli
Elimination Tool:

A) Copper

B) Iron

C) Lead

D) Glass

10 / 220

A wheel starts rotating from result with angular acceleration of 2 rads-2 till its angular speed becomes 6 rad/s. The angular displacement of the wheel will be equal to:

UHS 2018
Physics
Circular Motion and Momentum
Circular Motion & Momentum
Angular Displacement, Velocity and Acceleration
Elimination Tool:

A) 4 rad

B) 9 rad

C) 12 rad

D) 7 rad

11 / 220

E/m of an electron is given by the relationship.

UHS 2018
Physics
Magnetism and Electromagnetic Induction
Determination of e/m of an Electron
Elimination Tool:

A) e/m2(VB2r2)

B) e/m=(V/Br)2

C) e/m=V.r/B

D) e/m=V/Br

12 / 220

If the time period of the oscillation is 20 micro-sec, then what will be the frequency of that oscillating body?

UHS 2018
Physics
Oscillations and Simple Harmonic Motion
Wave Motion and Sound
Simple Harmonic Motion and Uniform Circular Motion
Elimination Tool:

A) 5000 Hz

B) 50000 Hz

C) 20000 Hz

D) 1000 Hz

13 / 220

Lenz’s law in electromagnetic induction is the direct consequence of the principle of conservation of:

UHS 2018
Physics
Magnetism and Electromagnetic Induction
Faradays and Lenz Law and Induced EMF
Elimination Tool:

A) Energy

B) Charge

C) Momentum

D) Mass

14 / 220

Simple Harmonic Motion of a body is described by which statements mentioned below:

K : K.E is maximum when displacement x = 0

L : P.E is maximum when x = 0

M : P.E is maximum when x = ± x0

UHS 2018
Physics
Oscillations and Simple Harmonic Motion
Simple Harmonic Motion and Uniform Circular Motion
Elimination Tool:

A) K and L

B) K and M

C) K, L and M

D) L and M

15 / 220

Which of the following gives the relationship between linear velocity and angular velocity?

UHS 2018
Physics
Circular Motion and Momentum
Circular Motion & Momentum
Relation between Angular and Linear Velocities
Elimination Tool:

A) v = rω

B) v = rθ

C) v=sω

D) v=sθ

16 / 220

Kirchhoff’s first law is manifestation of:

UHS 2018
Physics
Current Electricity
Kirchoff’s Law
Elimination Tool:

A) Law of conservation of momentum

B) Law of conservation mass

C) Law of conservation of energy

D) Law of conservation of charge

17 / 220

What is the name of the energy which is released when an atom is formed from its constituent particles?

UHS 2018
Physics
Nuclear Physics
Mass Defect And Binding Energy
Elimination Tool:

A) Atomic Energy

B) Radioactive Energy

C) Nuclear Energy

D) Binding Energy

18 / 220

What is the main feature required by the optical fiber for the propagation of light in an optical fiber?

UHS 2018
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

A) Optical glass should be cleaned

B) Light should be totally confined within the fiber

C) They are cheaper than copper wire

D) LED light must be used

19 / 220

A metal rod of length 10.0 cm is moving at a speed of 0.5 ms-1 in a direction perpendicular to a 0.20 T magnetic field. Find the emf produced in the rod.

UHS 2018
Physics
Magnetism and Electromagnetic Induction
Induced EMF and Induced Current
Elimination Tool:

A) 2.0 x 10-3V

B) 0.50 x 10-2V

C) 1.0 x 10-2V

D) 1.0 x 10-3V

20 / 220

Force experienced per unit positive test charge at a point in an electric field is the definition of:

UHS 2018
Physics
Electrostatics
Elimination Tool:

A) Electric potential energy

B) Electric field strength

C) Electric potential

D) Electric field

21 / 220

Calculate the activity (decaying atom per unit time) of radioactive strontium – 90 having 6.7 x 1021 atoms at t = 0. Decay constant of strontium – 90 is 8.3 x 10-10 s-1

UHS 2018
Physics
Nuclear Physics
Radioactivity
Elimination Tool:

A) 8.01 x 1010Bq

B) 5.6 x 1011s-1

C) 5.6 x 1012Bq

D) 12 x 1011Bq

22 / 220

Newton first law of motion is also known as:

UHS 2018
Physics
Forces and Motion
Newton’s Laws of Motion
Elimination Tool:

A) Law of inertia

B) Law of electromagnetism

C) Law of universal gravity

D) Law of conservation of momentum

23 / 220

A cyclist is travelling at 15 ms-1, she applies brakes so that she doesn’t collide with the wall in front of her at a distance of 18 m. Calculate the magnitude of deceleration.

UHS 2018
Physics
Forces and Motion
Equations of Uniformly Accelerated Motion
Elimination Tool:

A) 6.3 ms-1

B) 5.3 ms-1

C) 13 ms-1

D) 12.5 ms-1

24 / 220

When a potential difference is applied across the ends of a uniform wire of length l and radius r, a current I flows in the wire. If same potential difference is applied to the ends of another wire of the same material but of length 2l and radius 2r, the current in the wire is:

UHS 2018
Physics
Current Electricity
Electric Current
Elimination Tool:

A) I/4

B) 2I

C) I

D) I/2

25 / 220

What is the instantaneous power dissipated through a resistor of resistance 10 ohm if it is connected to an AC source of frequency 15 Hz at 1/180 sec if peak value is 20 V?

UHS 2018
Physics
Alternating Current
A.C. Circuits
Elimination Tool:

A) 10 W

B) 100 W

C) 40 W

D) Cannot be determined

26 / 220

If one mole of an ideal gas is heated at constant pressure, then the first law of thermodynamics can be written as:

UHS 2018
Physics
Heat and Thermodynamics
First Law of Thermodynamics
Elimination Tool:

A) CpΔT = CvΔT + PΔV

B) CvΔT = CpΔT + PΔV

C) CpΔT = CvΔT + VΔP

D) ΔCpT = ΔCvT + PΔV

27 / 220

In photo-emission from a metal, if light of λ is replaced by light of wavelength λ / 4 , the maximum kinetic energy of the photoelectrons.

UHS 2018
Physics
Dawn of Modern Physics
Elimination Tool:

A) Decreases by an amount equal to half of an incident photon of wavelength λ

B) Increases by an amount equal to four times energy of an incident photon of wavelength λ

C) Increases by an amount equal to the work function of the metal

D) Decreases by an amount equal to the energy of an incident photon of wavelength λ

28 / 220

Find the mean translational kinetic energy of ideal hydrogen gas at 17 degree Celcius.

UHS 2018
Physics
Heat and Thermodynamics
Kinetic Theory of Gases
Elimination Tool:

A) 6.21 x 10-21J

B) 5 x 10-21J

C) 6.21 x 10-12J

D) 6 x 10-21J

29 / 220

In SHM the kinetic energy of the body is maximum when:

UHS 2018
Physics
Oscillations and Simple Harmonic Motion
Simple Harmonic Motion and Uniform Circular Motion
Elimination Tool:

A) The body is at mean position

B) The body is at extreme position from the mean

C) The body is exactly half way down between mean and extreme position

D) The body is somewhere between mean and extreme position

30 / 220

A torch is rated 2.2 V 0.25 A. Calculate the charge passing through the bulb in one second and energy transferred by the passage of each coulomb of charge.

UHS 2018
Physics
Current Electricity
Electrical Power and Power Dissipation in Resistors
Elimination Tool:

A) 2.5 C and 0.55 J

B) 0.25 C and 0.55 J

C) 0.25 C and 2.2 V

D) 2.25 V and 0.55 J

31 / 220

Force is a derived quantity, its derived unit can be expressed in terms of the base units as:

UHS 2018
Physics
Measurements
Physical Quantities
Elimination Tool:

A) Kgms-2

B) Kgcms-2

C) Kgm2s2

D) Kgms2

32 / 220

A diffraction grating has 500 lines per mm, its grating element d is equal to:

UHS 2018
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

A) 2 x 10-6meter

B) 2 x 10-2meter

C) 2 x 10-2cm

D) 2 x 10-6cm

33 / 220

If slope of velocity time graph is not constant at different points then body is moving with:

UHS 2018
Physics
Forces and Motion
Velocity-Time Graph
Elimination Tool:

A) Uniform velocity

B) changing acceleration

C) Average acceleration

D) Constant acceleration

34 / 220

Coulomb’s law is given by the formula:

F=kq1q2/ r2
The magnitude of k having the unit of Nm2C-2for free space is equal to

UHS 2018
Physics
Electrostatics
Elimination Tool:

A) 9 x 107

B) 6 x 107

C) 10 x 109

D) 9 x 109

35 / 220

Two long, parallel conductors which are free to move are arranged 1.0 cm apart. A steady current of 20 A flows in each of the conductors in the same direction. The conductors:

UHS 2018
Physics
Magnetism and Electromagnetic Induction
Magnetic Field Due to Current in a Long Straight Wire
Elimination Tool:

A) Remains stationary

B) Move towards each other

C) Move away from each other

D) Move at right angles to each other

36 / 220

When the frequency of the applied force becomes equal to one of natural frequencies of body then the body oscillates with maximum displacement this phenomenon is called:

UHS 2018
Physics
Wave Motion and Sound
Oscillations and Simple Harmonic Motion
Resonance
Elimination Tool:

A) Heating

B) Resonance

C) Reverbnation

D) Damping

37 / 220

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

UHS 2018
Physics
Alternating Current
A.C. Circuits
Elimination Tool:

A) Very high

B) Very low

C) A few ohms

D) Negative

38 / 220

In the case of linear deformation, the ratio of tensile stress to tensile strain is called:

UHS 2018
Physics
Physics of Solids
Elimination Tool:

A) Energy stored in a stretched wire

B) Young’s double slit phenomenon

C) Bulk Modulus

D) Young’s Modulus

39 / 220

A shock wave is produced due to an earthquake which makes the buildings move in the direction of the shock wave. Which progressive wave would this be?

UHS 2018
Physics
Wave Motion and Sound
Elimination Tool:

A) Longitudinal wave

B) Transverse wave

C) Material wave

D) Particle wave

40 / 220

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

UHS 2018
Physics
Alternating Current
Work, Power & Energy
Principle of Generation, Transmission and Reception of Electromagnetic Waves
Elimination Tool:

A) Power output = Power input

B) Power output > Power input

C) Power output ≥ Power input

D) Power output < Power input

41 / 220

Calculate the half life of Bismuth-214 which has a decay constant of 4.3 x 10-4 s-1:

UHS 2018
Physics
Nuclear Physics
Radioactivity
Elimination Tool:

A) 2.9 x 10-3s

B) 1.6 x 10^3 s

C) 3.9 x 103s

D) 2.9 x 103s

42 / 220

Energy consumed by 60 watt bulb in 2 minutes is equal to:

UHS 2018
Physics
Work, Power and Energy
Power and Energy
Elimination Tool:

A) 7.2 kilo joules

B) 720 joules

C) 120 joules

D) 72000 joules

43 / 220

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.
ENCUMBER

UHS 2018
English
Key Vocabulary
Elimination Tool:

A) Clear

B) Spacious

C) Convenient

D) Strained

44 / 220

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.
LAMPOON

UHS 2018
English
Key Vocabulary
Elimination Tool:

A) Appreciate

B) Burlesque

C) Approve

D) Annoy

45 / 220

In the following question, four alternative sentences are given. Choose the CORRECT one.

UHS 2018
English
Grammar and Punctuation
Elimination Tool:

A) I leaned over the parapet and looked down.

B) I leaned at the parapet and looked down.

C) I leaned against the parapet and looked down.

D) I leaned down the parapet and looked down.

46 / 220

Choose the BEST Option.
I know how to _______ a throat for inspection.

UHS 2018
English
Fill in the blank
Elimination Tool:

A) Force

B) Prepare

C) Expose

D) Open

47 / 220

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.

ILK

UHS 2018
English
Key Vocabulary
Elimination Tool:

A) Breed

B) Civilization

C) Origin

D) Culture

48 / 220

In the following question, four alternative sentences are given. Choose the CORRECT one.

UHS 2018
English
Grammar and Punctuation
Elimination Tool:

A) A common cause of failure is a mistaking ambition for the boy on the part of the parents.

B) A common cause of failure is a mistaken ambition for the boy on the part of parents.

C) A common cause of failure is a mistake ambition for the boy on the part of the parents.

D) A common causes of failure is a mistake ambition for the boy on the part of the parents.

49 / 220

SPOT THE ERROR: In the following sentence some segments of the sentence are underlined. Your task is to identify that underlined segment of the sentence, which contains the mistake that needs to be corrected.
The king feels disturbed and on hearing these words he could not control his tears

UHS 2018
English
Identify errors in sentence
Elimination Tool:

A) Feels

B) And on

C) These words

D) Could not control

50 / 220

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.
NEXUS

UHS 2018
English
Key Vocabulary
Elimination Tool:

A) Focal point

B) Success

C) Hinterland

D) Politics

51 / 220

In the following question, four alternative sentences are given. Choose the CORRECT one.

UHS 2018
English
Grammar and Punctuation
Elimination Tool:

A) The manager looked on me in some alarm.

B) The manager looked on me with some alarm.

C) The manager looked at me with some alarm.

D) The manager looked at me in some alarm.

52 / 220

Choose the BEST Option.
It is better for me to _______ than to shed the blood of an innocent boy.

UHS 2018
English
Fill in the blank
Elimination Tool:

A) Died

B) Die

C) Had died

D) Have died

53 / 220

In the following question, four alternative sentences are given. Choose the CORRECT one.

UHS 2018
English
Grammar and Punctuation
Elimination Tool:

A) In my experience, the awakening of that clear judgemeent as to what the college is for, is not as difficult as is often supposed.

B) In my experience, the awakening of a clear judgement as for what the college is for,is not as difficult as is often supposed

C) In my experience, the awakening of a clear judgement as to what the college is for, is not as difficult as is often supposed

D) In my experience, the awakening of a clear judgement as to what the college is for, is not as much as difficult as often supposed.

54 / 220

In the following question, four alternative sentences are given. Choose the CORRECT one.

UHS 2018
English
Grammar and Punctuation
Elimination Tool:

A) Towards the end of the month, he took to his bed.

B) Towards the end of the month, he took into his bed.

C) Toward end of month, he took to his bed.

D) Towards the end of month, he took to his beds.

55 / 220

In the following question, four alternative sentences are given. Choose the CORRECT one.

UHS 2018
English
Grammar and Punctuation
Elimination Tool:

A) I lost my little plough in a furrow and I and cried until he had made me another plough.

B) I lost my little plough in furrow and have cried and cried until he made me another plough.

C) I lost my little plough in a furrow and I had cried and cried until he made me another plough.

D) I lost my little plough in a furrow and I cried and cried until he made me another plough.

56 / 220

SPOT THE ERROR: In the following sentence 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 most important and the least difficult thing to achieve is a desire amongst individuals to limit the size of family.

UHS 2018
English
Identify errors in sentence
Elimination Tool:

A) The most

B) The least

C) Is a desire

D) amongst individuals

57 / 220

Choose the BEST Option.
The region ______ which they were passing was known as the Land of Thirst and Death.

UHS 2018
English
Fill in the blank
Elimination Tool:

A) Through

B) By

C) In

D) From

58 / 220

SPOT THE ERROR: In the following sentence some segments of the sentence are underlined. Your task is to identify that underlined segment of the sentence, which contains the mistake that needs to be corrected.
However, by being so long in lowest format I gained an immense advantage over the cleverer boys.

UHS 2018
English
Identify errors in sentence
Elimination Tool:

A) However

B) Lowest

C) An immense

D) Cleverer boys

59 / 220

SPOT THE ERROR: In the following sentence 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.
There is terror from the outset and there are all the components necessary to create a melodrama — a dimly lit bus station, the storm accompanied by flashes of lightning and the promise of violent action or emotion.

UHS 2018
English
Identify errors in sentence
Elimination Tool:

A) From the outset

B) There are all

C) The storm accompanied

D) The promise of violent

60 / 220

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.
HECTOR

UHS 2018
English
Key Vocabulary
Elimination Tool:

A) Harass

B) Helpmate

C) Hellish

D) Hefty

61 / 220

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.
AUGUST

UHS 2018
English
Key Vocabulary
Elimination Tool:

A) Local

B) Old

C) Venerable

D) Foreign

62 / 220

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.
PERPETUATE

UHS 2018
English
Key Vocabulary
Elimination Tool:

A) Skulk

B) Deviate

C) Eternize

D) Perish

63 / 220

In the following question, four alternative sentences are given. Choose the CORRECT one.

UHS 2018
English
Grammar and Punctuation
Elimination Tool:

A) There is no clearly defined plot nor is there an attempt to establish a strong “hero figure”

B) There is neither clearly defined plot not is there an attempt to establish a strong “hero figure”

C) There is not clearly defined plot nor is there any attempt to establish a strong “hero figure”

D) There not either clearly defined plot not is there an attempt to establish a strong “hero figure”

64 / 220

Choose the BEST Option.
That is just an example of what I complain _______.

UHS 2018
English
Fill in the blank
Elimination Tool:

A) Of

B) Off

C) To

D) With

65 / 220

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

He had earned the reputation of being a great jester, and jests were expected from him.

UHS 2018
English
Identify errors in sentence
Elimination Tool:

A) Of being

B) A great jester

C) Jests

D) From him

66 / 220

SPOT THE ERROR: In the following sentence some segments of the sentence are underlined. Your task is to identify that underlined segment of the sentence, which contains the mistake that needs to be corrected.
He glances back at the door, then turns his attention once more towards the paper and begins going through it casually. No error

UHS 2018
English
Identify errors in sentence
Elimination Tool:

A) He glances

B) At the door

C) Towards the paper

E) No error

67 / 220

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.

DUNCE

UHS 2018
English
Key Vocabulary
Elimination Tool:

A) Brainy

B) Intellectual

C) Cautious

D) Oaf

68 / 220

In the following question, four alternative sentences are given. Choose the CORRECT one.

UHS 2018
English
Grammar and Punctuation
Elimination Tool:

A) The sufferer becomes depressed and feels very ill.

B) The sufferer becomes depress and feels very ill.

C) The sufferer becomes depressed and feeling very ill.

D) The sufferer becomes depressed and feel very ill.

69 / 220

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.

HIATUS

UHS 2018
English
Key Vocabulary
Elimination Tool:

A) Lull

B) Longing

C) Heretical

D) Veneration

70 / 220

In the following question, four alternative sentences are given. Choose the CORRECT one.

UHS 2018
English
Grammar and Punctuation
Elimination Tool:

A) Oppressive it was, too, with the heaviness of a storm.

B) Oppressive it was, too, in the heaviness of a storm.

C) Oppressive it was, too, up the heaviness of a storm.

D) Oppressive it was, off the heaviness of a storm.

71 / 220

In the following question, four alternative sentences are given. Choose the CORRECT one.

UHS 2018
English
Grammar and Punctuation
Elimination Tool:

A) China is now the fashion around the world.

B) China is now the fusion around the world.

C) China is not the function around the world

D) China is now fissure around the world.

72 / 220

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.
BUFFERS

UHS 2018
English
Key Vocabulary
Elimination Tool:

A) Shocks

B) Shield

C) Support

D) Window

73 / 220

Down the group acid-base behaviour of metallic oxides of group 2 elements changes to:

UHS 2018
Chemistry
s and p Block Elements
General Behaviour of Alkali and Alkaline Earth Metals
Elimination Tool:

A) More basic

B) No change

C) Less basic

D) More acidic

74 / 220

Which one will act as a strong acid?

UHS 2018
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Chloroethanoic acid

B) Ethanoic acid

C) Trichloroethanoic acid

D) Dichloroethanoic acid

75 / 220

Which of the following catalysts is used in the below reaction?

UHS 2018
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Conc. H2SO4

B) Purnice stone

C) Pt

D) Ni

76 / 220

Alcohol in which carbon atom bonded to OH group is further attached with three alkyl group is:

UHS 2018
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Tertiary alcohol

B) Primary alcohol

C) Aromatic alcohol

D) Secondary alcohol

77 / 220

If Cv= 5/2 R , Cpwill be:

UHS 2018
Physics
Heat and Thermodynamics
First Law of Thermodynamics
Elimination Tool:

A) 2 / 5 R

B) 2 / 7 R

C) 5 / 2 R

D) 7 / 2 R

78 / 220

Amino acids react with each other such that -COOH group of one amino acid reacts with the -NH2 group of another amino acid to give a condensed structure as shown below:

What is the name of the circled part of this structure?

UHS 2018
Chemistry
Chemistry of Life
Proteins
Elimination Tool:

A) Ester linkage

B) Peptide linkage

C) Carbide linkage

D) Azide linkage

79 / 220

Which compound is obtained by the elimination of bromopropane?

UHS 2018
Chemistry
Alkyl Halides and Amines
Reactivity and Reactions of Alkyl Halides
Elimination Tool:

A) Propene

B) Ether

C) Aldehyde

D) Ester

80 / 220

Why is it necessary to distill aldehyde formed from oxidation of primary alcohol through acidified potassium dichromate (VI) solution or acidified sodium dichromate (VI) solution?

UHS 2018
Chemistry
Alcohols, Phenols and Ethers
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
Elimination Tool:

A) Aldehyde formed may be oxidized further to carboxylic acid concerned

B) Aldehyde formed is unstable and decompose back to original precursor i.e. primary alcohol

C) Aldehyde may be oxidised further to a ketone

D) Aldehyde formed may react with primary alcohol, the original reactant.

81 / 220

The standard electrode potential of hydrogen is arbitrarily taken at 298 K is ________

UHS 2018
Chemistry
Electrochemistry
Elimination Tool:

A) 0.00 volt

B) 0.10 volt

C) 10.0 volt

D) 1.00 volt

82 / 220

The following sketch shows the variation in a physical property of third period elements against their atomic numbers:

What physical property is plotted in this sketch?

UHS 2018
Chemistry
Periodicity in Elements
Periodic Trends
Elimination Tool:

A) Ionization energy

B) Melting point

C) Ionic radius

D) Atomic radius

83 / 220

Which one of the following compounds is known as tertiary alcohol?

UHS 2018
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) 1 – Propanol

B) 2- methyl – 2- propanol

C) 2- methyl – 1- propanol

D) 2 – propanol

84 / 220

Liquid in the container has a temperature 70°C. What will be the temperature on the Kelvin scale?

UHS 2018
Chemistry
States of Matter – Gases, Liquids and Solids
Properties of Liquids and Water
Elimination Tool:

A) 350 K

B) 343 K

C) 300 K

D) 283 K

85 / 220

Which of the following gas, when ignited, burns with a blue flame and is not very soluble in water?

UHS 2018
Chemistry
s and p Block Elements
Environmental Chemistry
Introduction to s and p Block Elements
Elimination Tool:

A) O2

B) CO2

C) N2

D) He

86 / 220

Electron affinity of the atom is the energy released when:

UHS 2018
Chemistry
Chemical Bonding
Elimination Tool:

A) Covalent bond of molecule is broken

B) Electron is added to gaseous atom

C) Electron is removed from gaseous atom

D) Covalent bond is formed between the atoms

87 / 220

The species which are produced by heterolytic bond breaking and can act as electron pair donors are known as:

UHS 2018
Chemistry
Hydrocarbons
Introduction to Hydrocarbons
Elimination Tool:

A) Nucleophiles

B) Cations

C) Free radicals

D) Anions

88 / 220

The product of the concentrations of each ion in a saturated solution of a sparingly soluble salt at 298 K, raised to the power of their relative concentrations is:

UHS 2018
Chemistry
Chemical Equilibrium
Equilibrium Constant
Elimination Tool:

A) Ksp

B) Ka

C) Kw

D) Kb

89 / 220

Ligands having two lone pair of electrons for donation to the central transition metal ion are known as:

UHS 2018
Chemistry
d and f Block Elements
Elimination Tool:

A) Polydentate ligands

B) Monodentate ligand

C) Bidentate ligands

D) Hexadentate ligands

90 / 220

Halothane is a halo derivative of:

UHS 2018
Chemistry
Alkyl Halides and Amines
Introduction to Alkyl Halides and Amines
Elimination Tool:

A) Methane

B) Ethane

C) Methanol

D) Ethanol

91 / 220

The shape of [Co(NH3)6]3+ complex is:

UHS 2018
Chemistry
d and f Block Elements
Elimination Tool:

A) Linear

B) Square planar

C) Tetrahedral

D) Octahedral

92 / 220

Which of the following would react with ozone in the atmosphere?

UHS 2018
Chemistry
Environmental Chemistry
Elimination Tool:

A) F*

B) O2

C) O*

D) Cl*

93 / 220

Which option shows all the molecules with bond angle 109.5 degrees.

UHS 2018
Chemistry
Chemical Bonding
Elimination Tool:

A) CH4, NH4+ , PH3

B) SiCl4, H2O , BeCl2

C) SiCl4, NH4+ , CH4

D) CH4, CCl4, NH3

94 / 220

Which of the following molecules has the largest number of shared pairs of electrons?

UHS 2018
Chemistry
Chemical Bonding
Elimination Tool:

A) C2H4

B) N2

C) CO2

D) NH3

95 / 220

Which is the structure of polyvinyl chloride (polychloroethane)?

UHS 2018
Chemistry
Macromolecules
Introduction and Structure of Polymers
Elimination Tool:

A) -[CCl2-CCl2]-

B) -[HCCl-CH-Cl]-

C) [H2C=CH-Cl]

D) -[H2C-CH-Cl]-

96 / 220

Select one which is alcohol.

UHS 2018
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) CH3- CH2- Br

B) CH3- O – CH3

C) CH3COOH

D) CH3- CH2- OH

97 / 220

3.0 mole of Calcium will contain _____ g of Calcium.

UHS 2018
Chemistry
Stoichiometry
Mole
Elimination Tool:

A) 105 g

B) 120 g

C) 80 g

D) 100 g

98 / 220

The correct order of increasing reactivity of the following alkyl halides,

(I) CH3CH2CH2Cl
(II) CH3CH2CH2CH2Br
(III) (CH3)2C(Cl)CH2CH3
(IV) CH3CH2CH(Br)CH3

Towards SN2 displacement is:

UHS 2018
Chemistry
Alkyl Halides and Amines
Reactivity and Reactions of Alkyl Halides
Elimination Tool:

A) I < II < III < IV

B) III < I < IV < II

C) III < I < II < IV

D) II < IV < I < III

99 / 220

Which one of the following compounds act as a catalyst when alcohols react with carboxylic acids.

UHS 2018
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Pt

B) Conc. HNO3

C) Ni

D) Conc. H2SO4

100 / 220

Which is the correct electronic configuration of Chromium (24Cr)?

UHS 2018
Chemistry
d and f Block Elements
Elimination Tool:

A) 1s2, 2s2, 3s2, 2p6, 3p6, 4s2, 3d6

B) 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d4

C) 1s1, 2s2, 2p6, 3s2, 3p6, 3d6

D) 1s2, 2s2, 2p6, 3s2, 3p6, 4s1, 3d5

101 / 220

Role of a catalyst in a chemical reaction is to:

UHS 2018
Chemistry
Reaction Kinetics
Catalysis
Elimination Tool:

A) Decreases yield of a reaction

B) Decreases rate of a reaction

C) Increase yield of product

D) Increase rate of a reaction

102 / 220

The potential difference of an electrochemical cell is measured by:

UHS 2018
Chemistry
Electrochemistry
Elimination Tool:

A) Ammeter

B) Voltmeter

C) Galvanometer

D) Calorimeter

103 / 220

Which one of the following is the structure of Teflon?

UHS 2018
Chemistry
Alkyl Halides and Amines
Macromolecules
Introduction to Alkyl Halides and Amines
Introduction and Structure of Polymers
Elimination Tool:

A) (-CF2-CF2-)n

B) (-CF2-CCl2-)n

C) (-CH2-CH2-)n

D) (-CF2-CH2-)n

104 / 220

Which of these pollutants is produced by burning of coal and causes acid rain.

UHS 2018
Chemistry
Environmental Chemistry
Elimination Tool:

A) NO

B) CO2

C) SO2

D) CO

105 / 220

Nylon-6,6 is also called:

UHS 2018
Chemistry
Macromolecules
Synthetic Polymers and Biopolymers
Elimination Tool:

A) Poly styrene

B) Polyester

C) Polyamide

D) Polyvinyl alcohol

106 / 220

Gas is enclosed in a container of 20 cm3 with the moving piston. According to kinetic theory of gases, what will be the effect on freely moving molecules of the gas if temperature is increased from 20 C to 100 C?

UHS 2018
Chemistry
States of Matter – Gases, Liquids and Solids
Kinetic Molecular Theory Of Gases
Elimination Tool:

A) Pressure will become one half

B) Volume will be increased

C) Temperature has no effect on freely moving molecules

D) Colliding capability of molecule will become lower

107 / 220

Which one of the following enthalpy changes is always exothermic?

UHS 2018
Chemistry
Thermochemistry
Standard States and Enthalpy Changes
Elimination Tool:

A) Enthalpy of combustion

B) Enthalpy of formation

C) Enthalpy of atomization

D) Enthalpy of solution

108 / 220

Which product is formed by the reaction of carboxylic acid with alcohol?

UHS 2018
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Alkane

B) Ether

C) Aldehyde

D) Ester

109 / 220

In an aqueous solution, amino acids exist in an ionic form as shown below:

This ionic form of amino acid is known as:

UHS 2018
Chemistry
Chemistry of Life
Proteins
Elimination Tool:

A) Zwitterion

B) Amphoteric ion

C) Cation

D) Anion

110 / 220

The dilute solution of ______ is called vinegar.

UHS 2018
Chemistry
Acids, Bases and Salts
Acidic, Basic and Amphoteric Substances
Elimination Tool:

A) Formic acid

B) Oxalic acid

C) Benzoic acid

D) Acetic acid

111 / 220

Butane molecules can have a maximum number of isomers.

UHS 2018
Chemistry
Hydrocarbons
Alkanes and Paraffins
Elimination Tool:

A) 5

B) 3

C) 4

D) 2

112 / 220

Halogens are being used as fire extinguishers, mild antiseptic CFCs and many other organic chemicals, Which of the following halogen is used to kill the bacteria in drinking water.

UHS 2018
Chemistry
s and p Block Elements
Introduction to s and p Block Elements
Elimination Tool:

A) Bromine

B) Fluorine

C) Chlorine

D) Iodine

113 / 220

The formula which shows the simplest whole number ratio for the atoms of different elements in a compound is:

UHS 2018
Chemistry
Stoichiometry
Mole
Mole
Elimination Tool:

A) Ionic formula

B) Structural formula

C) Empirical formula

D) Molecular formula

114 / 220

In Period 2 and Period 3 maximum melting point shown by elements:

UHS 2018
Chemistry
Periodicity in Elements
Introduction to the Periodic Table
Elimination Tool:

A) Nitrogen and Phosphorus

B) Neon and Argon

C) Lithium and Sodium

D) Carbon and Silicon

115 / 220

According to Lowry – Bronsted Acid & Base Concept, H2O is:

UHS 2018
Chemistry
Acids, Bases and Salts
Lowery Bronsted Concepts for Acids and Bases
Elimination Tool:

A) An acid

B) A base

C) An amphoteric species

D) A salt

116 / 220

The stability in the following structure is due to the:

UHS 2018
Chemistry
Chemical Bonding
Elimination Tool:

A) Weak van der Waal’s forces

B) Disulfide bridges

C) Presence of unpaired electron in the structure

D) Hydrogen bonding between NH group of one peptide and CO group of another peptide

117 / 220

Percentage of nitrogen by volume in air is:

UHS 2018
Chemistry
Environmental Chemistry
Elimination Tool:

A) 78%

B) 50%

C) 20%

D) 98%

118 / 220

Bromination of alkene is shown in the following reaction. This reaction is used for:

UHS 2018
Chemistry
Hydrocarbons
Alkenes
Elimination Tool:

A) Detection of ketones

B) Detection of double bond

C) Identification of Primary and Secondary alcohols

D) Detection of Aldehydes

119 / 220

While finding the relative atomic mass, which of the following standard is used to compare the atomic mass of chlorine (35.5 amu)

UHS 2018
Chemistry
Stoichiometry
Mole
Elimination Tool:

A) Carbon – 13

B) Neon – 20

C) Carbon – 12

D) Nucleon number

120 / 220

Which one of the following reagents is used to distinguish between aldehydes and ketones?

UHS 2018
Chemistry
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
Elimination Tool:

A) Alkaline Iodine

B) Tollen’s Reagent

C) Bromine

D) 2, 4 DNPH

121 / 220

The catalyst used for the manufacture of H2SO4by contact process is:

UHS 2018
Chemistry
Chemical Equilibrium
Elimination Tool:

A) SO3

B) V2O5

C) Fe2O3

D) Pt/Pd

122 / 220

Which of the following acts as a nucleophile in the reaction of alkyl halide with alcoholic / aqueous ammonia?

UHS 2018
Chemistry
Alkyl Halides and Amines
Reactivity and Reactions of Alkyl Halides
Elimination Tool:

A) H+

B) NH3

C) NO2+

D) Br-

123 / 220

Reaction mechanism of alkanes with halogens is known as;

UHS 2018
Chemistry
Alkyl Halides and Amines
Methods of Preparation Of Alkyl Halides
Elimination Tool:

A) Propagation

B) Free radical substitution

C) Addition

D) Elimination

124 / 220

The essential property of a fertilizer is that is should be:

UHS 2018
Chemistry
Environmental Chemistry
Elimination Tool:

A) Immiscible

B) Highly soluble

C) Insoluble

D) Partially soluble

125 / 220

Which compound will be produced by the oxidation of ethanal by acidified K2Cr2O7 ?

UHS 2018
Chemistry
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
Elimination Tool:

A) Ethene

B) Ethanol

C) Ethanoic acid

D) Ethanone

126 / 220

Reaction of water with quicklime results in the rise in the temperature of the system. Using the concept of an energy change, indicates the nature of the reaction?

UHS 2018
Chemistry
Thermochemistry
Enthalpies of Reactions and its Types
Elimination Tool:

A) Endothermic Reaction

B) Non-Spontaneous Reaction

C) Third Order Reaction

D) Exothermic Reaction

127 / 220

Which of the following compounds is solid at room temperature?

UHS 2018
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Ethanol

B) Butane

C) Methanol

D) Phenol

128 / 220

Which mechanism of reactions is shown by carbonyl compounds?

UHS 2018
Chemistry
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
Elimination Tool:

A) Electrophilic addition

B) Electrophilic substitution

C) Free radical substitution

D) Nucleophilic addition

129 / 220

Which of the following is the correct equation to calculate relative molecular mass of a gas.

UHS 2018
Chemistry
States of Matter – Gases, Liquids and Solids
Gas Laws and General Gas Equation
Elimination Tool:

A) M = mPR / VT

B) M = PV / mRT

C) M = mPRT / V

D) M = mRT / PV

130 / 220

A 5 watt LED bulb converts 80% of the power into light photons wavelength 660 nm. What is the number of photons emitted from the bulb in one second.

UHS 2018
Physics
Dawn of Modern Physics
Elimination Tool:

A) 5.8 x 1034

B) 7.5 x 1018

C) 6.6 x 107

D) 1.3 x 1019

131 / 220

Which of the following acts as an electrophile in the electrophilic substitution of benzene with bromine?

UHS 2018
Chemistry
Hydrocarbons
Reactions of Benzene
Elimination Tool:

A) Br+

B) FeCl4+

C) Fe2+

D) Fe3+

132 / 220

Deficiency of enzyme ______ causes combined immunodeficiency syndrome.

UHS 2018
Biology
Biotechnology
Gene Therapy
Elimination Tool:

A) Adenosine transcriptase

B) Adenosine transaminase

C) Adenosine polymerase

D) Adenosine deaminase

133 / 220

A non-protein part which is essential for proper functioning of enzyme is called:

UHS 2018
Biology
Enzymes
Elimination Tool:

A) Additional factor

B) Cofactor

C) Efficient co factor

D) Extra factor

134 / 220

The term “Loss of appetite” refers to disease:

UHS 2018
Biology
Nutrition
Some Common Diseases Related to Nutrition
Elimination Tool:

A) Botulism

B) Anorexia nervosa

C) Obesity

D) Bulemia nervosa

135 / 220

Gradual breakdown of the alveolar wall leads to which type of disease in a smoker?

UHS 2018
Biology
Gaseous Exchange
Respiratory Disorders
Elimination Tool:

A) Coronary heart disease

B) Bronchitis

C) Emphysema

D) Asthma

136 / 220

The first part of the large intestine is:

UHS 2018
Biology
Nutrition
Digestion and Absorption
Elimination Tool:

A) Colon

B) Appendix

C) Caecum

D) Rectum

137 / 220

The hormone which controls the uptake of Sodium ions in kidney and its maintenance in blood plasma is:

UHS 2018
Biology
Coordination and Control
Endocrine System and its Hormones
Elimination Tool:

A) Somatotrophic Hormone

B) Aldosterone Hormone

C) Gonadotrophic Hormone

D) Thyroxine Hormone

138 / 220

Taste buds on the tongue are example of:

UHS 2018
Biology
Coordination and Control
Peripheral Nervous System
Elimination Tool:

A) Pressure receptors

B) Chemoreceptors

C) Thermoreceptors

D) Photoreceptors

139 / 220

Site of protein synthesis in cells are:

UHS 2018
Biology
Cell Structure and Function
Cytoplasm and Organelles
Elimination Tool:

A) Ribosomes

B) Endoplasmic Reticulum

C) Nucleolus

D) Smooth Endoplasmic Reticulum

140 / 220

There are ______ number of linkage groups in humans.

UHS 2018
Biology
Chromosomes and DNA
The Chromosomal Theory of Inheritance
Elimination Tool:

A) 46

B) 22

C) 80

D) 23

141 / 220

Which of the following hormones acts on the uterus wall for thickening?

UHS 2018
Biology
Reproduction
Reproduction in Females
Elimination Tool:

A) Progesterone

B) Zona pellucida

C) Follicle stimulating hormone

D) Oxytocin

142 / 220

In human female, the egg is fertilized in:

UHS 2018
Biology
Reproduction
Reproduction in Females
Elimination Tool:

A) Ovary

B) Vagina

C) Oviduct

D) Uterus

143 / 220

The thickest chamber of the human heart is:

UHS 2018
Biology
Transport
Elimination Tool:

A) Left atrium

B) Right atrium

C) Right ventricle

D) Left ventricle

144 / 220

They serve as a scaffold for formation of higher order chromatin structure:

UHS 2018
Biology
Cell Structure and Function
Cytoplasm and Organelles
Elimination Tool:

A) Nucleosome

B) Nucleus

C) Chromosomes

D) Histones

145 / 220

How many sodium ions are pumped out in response to two potassium ions transported into the membrane?

UHS 2018
Biology
Coordination and Control
Steps Involved in Nervous Coordination
Elimination Tool:

A) 2

B) 3

C) 4

D) 1

146 / 220

Which hormone is released in females in response to FSH from the pituitary gland?

UHS 2018
Biology
Reproduction
Reproduction in Females
Elimination Tool:

A) Estrogen

B) ADH

C) Oxytocin

D) Progesterone

147 / 220

Skull, vertebral column, ribs, and sternum forms:

UHS 2018
Biology
Support and Movement
Human Skeleton
Elimination Tool:

A) Appendicular skeleton

B) Hydrostatic skeleton

C) Exoskeleton

D) Axial skeleton

148 / 220

Chemical nature of primers used in the PCR process is _______.

UHS 2018
Biology
Biotechnology
Genetic Engineering & its tools
Elimination Tool:

A) RNA

B) Protein

C) Carbohydrate

D) DNA

149 / 220

_________ hormone is released from the posterior lobe of the pituitary gland.

UHS 2018
Biology
Coordination and Control
Endocrine System and its Hormones
Elimination Tool:

A) Adrenaline

B) Thyroid stimulating hormone

C) FSH

D) Antidiuretic hormone

150 / 220

Which of the following statements is correct about the respiratory pigments?

UHS 2018
Biology
Gaseous Exchange
Transport of Gases
Elimination Tool:

A) Myoglobin and Haemoglobin has higher affinity for nitrogen

B) Cyanide and Haemoglobin has a low affinity for oxygen

C) Myoglobin has more affinity for oxygen as compared to haemoglobin

D) Albumin, Globulin and Globin proteins are present in respiratory pigments

151 / 220

The enzymes required for the Kreb cycle are found in ________.

UHS 2018
Biology
Bioenergetics
Respiration Mechanism – Glycolysis to Electron Transport Chain
Elimination Tool:

A) F1 particles

B) Lysosomes

C) Cytoplasm

D) Matrix

152 / 220

Coccyx vertebrae are located in:

UHS 2018
Biology
Support and Movement
Human Skeleton
Elimination Tool:

A) Cervical region

B) Lumbar region

C) Pelvic region

D) Thoracic region

153 / 220

Which combination is the example of ball and socket joints:

UHS 2018
Biology
Support and Movement
Types of Joints
Elimination Tool:

A) Hip and shoulder joints

B) Hip and knee joints

C) Shoulder and knee joints

D) Hip and elbow joints

154 / 220

Rod-shaped bacteria are known as _______

UHS 2018
Biology
Kingdom Prokaryote
Size and Structure of Bacteria
Elimination Tool:

A) Spirilla

B) Bacilli

C) Spirochete

D) Cocci

155 / 220

In viruses, a combined structure formed by core (Nucleic Acid) and capsid is:

UHS 2018
Biology
Bio-diversity | Variety of Life
Elimination Tool:

A) Nucleocapsid

B) Prion

C) Envelope

D) Capsomeres

156 / 220

The low levels of Surfactant produced by Alveolar epithelium causes:

UHS 2018
Biology
Gaseous Exchange
Respiratory Disorders
Elimination Tool:

A) Respiratory distress syndrome

B) Emphysema

C) Bronchitis

D) Asthma

157 / 220

By PCR we mean:

UHS 2018
Biology
Biotechnology
Genetic Engineering & its tools
Elimination Tool:

A) Polymerase chronic reaction

B) Polymerase chain reaction

C) Polymerase copy reaction

D) Polymerase cross reaction

158 / 220

In cross-section each Centriole consist of nine (each in triplets) of:

UHS 2018
Biology
Cell Structure and Function
Cytoplasm and Organelles
Elimination Tool:

A) Microfilaments

B) Microvilli

C) Microtubules

D) Intermediate filaments

159 / 220

Blood solute potential is controlled by the following hormone.

UHS 2018
Biology
Homeostasis
Structure and Importance of the Kidney
Elimination Tool:

A) Estrogen

B) Epinephrine

C) Thyroxine

D) Vasopressin

160 / 220

Single ringed pyrimidines are:

UHS 2018
Biology
Chromosomes and DNA
The Chemical Nature of DNA
Elimination Tool:

A) Uracil, Cytosine and Thymine

B) Cytosine, Guanine and Uracil

C) Adenine and Guanine

D) Cytosine, Adenine and Thymine

161 / 220

Which one of the following is Multiple allelic characters?

UHS 2018
Biology
Variation and Genetics
Elimination Tool:

A) Colour of flower in pea plant

B) Blood group of the human being

C) Shape of seed in pea plant

D) Length of stem in pea plant

162 / 220

A. ATP synthesis is seen in both
B. Outer membrane has more surface area in both
C. Circular naked DNA, RNA and 70 ribosomes are seen in both
D. Oxidative phosphorylation occurs in both

Which of the following statements are true for mitochondria and chloroplasts?

UHS 2018
Biology
Cell Structure and Function
Cytoplasm and Organelles
Elimination Tool:

A) A and B

B) B and C

C) A and C

D) A and D

163 / 220

When two or more alleles do not show complete dominance or both the alleles are expressing independently in heterozygotic condition. Such a condition is called:

UHS 2018
Biology
Variation and Genetics
Exceptions To Mendelian Inheritance
Elimination Tool:

A) Complete dominance

B) Over dominance

C) Codominance

D) Incomplete dominance

164 / 220

The temperature that promotes the maximum activity of enzymes is referred to as ______.

UHS 2018
Biology
Enzymes
Elimination Tool:

A) Fixed temperature

B) Optimum temperature

C) Controlled temperature

D) Active temperature

165 / 220

If the molecule can bind to another site of the enzyme rather than the true active site, it is referred to as ______

UHS 2018
Biology
Enzymes
Elimination Tool:

A) Competitive inhibitors

B) Allosteric inhibition

C) Noncompetitive inhibitors

D) Irreversible inhibition

166 / 220

Crossing over takes place during _____ of meiosis.

UHS 2018
Biology
Cell Cycle
Meiosis
Elimination Tool:

A) Prophase I

B) Telophase I

C) Metaphase I

D) Anaphase I

167 / 220

Enzyme used by the Bacteria to cut the DNA of the invading Virus for its protection is:

UHS 2018
Biology
Biotechnology
Genetic Engineering & its tools
Elimination Tool:

A) Restriction Exonuclease

B) Restriction Ligase

C) Restriction Endonuclease

D) DNA polymerase

168 / 220

Following group is the example of acoelomates:

UHS 2018
Biology
Kingdom Animalia
Classification according to Coelem
Elimination Tool:

A) Annelids

B) Aschelminthes

C) Molluscs

D) Platyhelminthes

169 / 220

The region of the chromosome or, more specifically, the length of the DNA molecule, which has a particular function is called _______.

UHS 2018
Biology
Chromosomes and DNA
Types & Composition of Chromosomes
Elimination Tool:

A) Kinetochore

B) Locus

C) Allele

D) Gene

170 / 220

When a nerve impulse jumps from one node of Ranvier to the next in a myelinated neuron, it’s called __________.

UHS 2018
Biology
Coordination and Control
Steps Involved in Nervous Coordination
Elimination Tool:

A) Synapses

B) Saltatory conduction

C) Resting potential

D) Membrane potential

171 / 220

In the nervous system chemical messengers are called ______.

UHS 2018
Biology
Coordination and Control
Coordination in Animals
Elimination Tool:

A) Neurotransmitters

B) Hormones

C) CHemoreceptors

D) Enzymes

172 / 220

Cell-mediated immune response is given by:

UHS 2018
Biology
Transport
Elimination Tool:

A) T-lymphocytes

B) B lymphocytes

C) Neutrophils

D) Macrophages

173 / 220

Which hormone causes the contraction walls of the uterus during the process of birth?

UHS 2018
Biology
Reproduction
Reproduction in Females
Elimination Tool:

A) FSH

B) STH

C) Oxytocin

D) LTH

174 / 220

A complete turn of the double helix of DNA comprises of:

UHS 2018
Biology
Chromosomes and DNA
The Chemical Nature of DNA
Elimination Tool:

A) 34 nm

B) 3.4 Angstrom

C) 3.4 nm

D) 34 micrometers

175 / 220

The cisternae breaks up into vesicles form _______ , ______ of Golgi complex.

UHS 2018
Biology
Cell Structure and Function
Cytoplasm and Organelles
Elimination Tool:

A) Convex, maturing face

B) Concave, forming face

C) Convex, forming face

D) Concave, maturing face

176 / 220

The enzymes required in Glycolysis are present in:

UHS 2018
Biology
Bioenergetics
Respiration Mechanism – Glycolysis to Electron Transport Chain
Elimination Tool:

A) Golgi Apparatus

B) Cell cytoplasm

C) Inner Mitochondrial Membrane

D) Matrix of Mitochondria

177 / 220

In aerobic respiration

UHS 2018
Biology
Bioenergetics
Respiration Mechanism – Glycolysis to Electron Transport Chain
Elimination Tool:

A) Pyruvate is completely oxidized to form carbon dioxide and water

B) Pyruvate is completely oxidized to form oxygen and water

C) Pyruvate carboxylated to produce citrate

D) Pyruvate is converted to ethanol and carbon dioxide

178 / 220

Which statement is correct about atrial systole?

UHS 2018
Biology
Transport
Elimination Tool:

A) Atria relax and ventricles contract

B) Atria contract and ventricle also contract

C) Ventricles remain relaxed while atria contracts

D) Atria and ventricles are relaxed

179 / 220

DNA made by joining pieces from two or more different sources:

UHS 2018
Biology
Biotechnology
Genetic Engineering & its tools
Elimination Tool:

A) Probes

B) Restriction endonuclease

C) Mutated DNA

D) Recombinant DNA

180 / 220

Conversion of ammonium into nitrates is:

UHS 2018
Biology
Man and His Environment
Biogeochemical Cycle
Elimination Tool:

A) Nitrification

B) Nitrogen Fixation

C) Ammonification

D) Denitrification

181 / 220

Synthesis of microtubules increases in:

UHS 2018
Biology
Cell Cycle
Introduction to the Cell Cycle
Elimination Tool:

A) M phase

B) S phase

C) G1 phase

D) G2 phase

182 / 220

The actual or preserved remains of the organisms that lived in the ancient past are called:

UHS 2018
Biology
Man and His Environment
Elimination Tool:

A) Fossils

B) Impression

C) Ancient prints

D) Ancient cast

183 / 220

Glycosidic bond is formed by the:

UHS 2018
Biology
Biological Molecules
Carbohydrates
Elimination Tool:

A) Removal of Oxygen

B) Addition of Oxygen

C) Removal of water

D) Addition of water

184 / 220

Growth in the larva of young arthropods is restricted by:

UHS 2018
Biology
Kingdom Animalia
Phylums – porifera to chordata
Elimination Tool:

A) Exoskeleton

B) Appendages

C) Endoskeleton

D) Reduced mitosis

185 / 220

Which of the following is Unsaturated “Fatty Acid”?

UHS 2018
Biology
Biological Molecules
Lipids
Elimination Tool:

A) Stearic Acid

B) Palmitic Acid

C) Butyric Acid

D) Oleic Acid

186 / 220

Urea cycle is the detoxification of:

UHS 2018
Biology
Homeostasis
Excretion in Animals
Elimination Tool:

A) Creatinine

B) Amino acids

C) Carbon dioxide

D) Ammonia

187 / 220

During breathing air from Pharynx enters to:

UHS 2018
Biology
Gaseous Exchange
Respiratory System of Man
Elimination Tool:

A) Trachea

B) Bronchioles

C) Alveoli

D) Bronchi

188 / 220

At the last step of Glycolysis, which of the following compound is formed:

UHS 2018
Biology
Bioenergetics
Respiration Mechanism – Glycolysis to Electron Transport Chain
Elimination Tool:

A) Pyruvic acid/ Pyruvate

B) Lactic acid

C) Ethyl Alcohol

D) Fructose Phosphate

189 / 220

Process ensuring the survival of species over long periods of time, even though individual members of the species die.

UHS 2018
Biology
Reproduction
Elimination Tool:

A) Reproduction

B) Adaptability

C) Mitosis

D) Respiration

190 / 220

These structures are involved in the breakdown of old organelles:

UHS 2018
Biology
Cell Structure and Function
Cytoplasm and Organelles
Elimination Tool:

A) Leucoplasts

B) Peroxisomes

C) Glyoxysomes

D) Lysosomes

191 / 220

Which of the following holds the alpha helix of protein in its place:

UHS 2018
Biology
Biological Molecules
Proteins
Elimination Tool:

A) R group

B) Disulfide bond

C) Amino group

D) Hydrogen bond

192 / 220

Yeasts, the unicellular fungi belongs mostly to the group:

UHS 2018
Biology
Kingdom Fungi
Classification and Diversity of Fungi
Elimination Tool:

A) Deuteromycota

B) Zygomycota

C) Basidiomycota

D) Ascomycota

193 / 220

Divergent Evolution produces:

UHS 2018
Biology
Evolution
Elimination Tool:

A) Vital Organs

B) Homologous Organs

C) Vestigial Organs

D) Analogous Organs

194 / 220

In immunoglobulins / antibodies, Two light chains and two heavy chains are linked to each other by:

UHS 2018
Biology
Transport
Elimination Tool:

A) Covalent bonds

B) Hydrogen bonds

C) Ionic bonds

D) Disulphide bonds

195 / 220

When we extract Carotenoids from its source we see that it is:

UHS 2018
Biology
Bioenergetics
Photosynthetic pigments
Elimination Tool:

A) Violet in color

B) Blue green in color

C) Yellow green in color

D) Yellow to orange red in color

196 / 220

Parathormone production is controlled by the blood:

UHS 2018
Biology
Coordination and Control
Coordination in Animals
Elimination Tool:

A) Ca level

B) Sugar level

C) Na level

D) Mg level

197 / 220

The ability to distinguish between two separate points/objects is:

UHS 2018
Biology
Cell Structure and Function
Techniques used in Cell Biology
Elimination Tool:

A) Magnification

B) Fractionation

C) Centrifugation

D) Resolution

198 / 220

Chitin which makes the Exoskeleton in insects is further hardened by:

UHS 2018
Biology
Kingdom Animalia
Phylums – porifera to chordata
Elimination Tool:

A) Protein and Sodium Bicarbonate

B) Protein and Calcium Carbonate

C) Protein and Potassium Carbonate

D) Protein and Sodium Carbonate

199 / 220

When filtration is completed the waste products through distal tube of Nephrons empties to:

UHS 2018
Biology
Homeostasis
Structure and Importance of the Kidney
Elimination Tool:

A) Efferent Arteriole

B) Collecting Tubules

C) Peritubular capillaries

D) Proximal tubules

200 / 220

The capillaries of glomerulus rejoin to form an _______.

UHS 2018
Biology
Homeostasis
Structure and Importance of the Kidney
Elimination Tool:

A) Efferent arteriole

B) Afferent arteriole

C) Peritubular capillaries

D) Collecting duct

201 / 220

If lipopolysaccharides did not appear in the wall of bacteria on staining then it will be known as ________.

UHS 2018
Biology
Kingdom Prokaryote
Size and Structure of Bacteria
Elimination Tool:

A) Gram negative

B) Gram positive

C) Capsule

D) Both Gram positive & negative

202 / 220

Organs specialized to perform different functions but structurally alike are:

UHS 2018
Biology
Evolution
Elimination Tool:

A) Analogous organs

B) Homologous organs

C) Autologous organs

D) Anuclogous organs

203 / 220

Antivenom given after a snake bite venom is an example of:

UHS 2018
Biology
Transport
Elimination Tool:

A) Natural passive immunity

B) Artificial active immunity

C) Natural active immunity

D) Artificial passive immunity

204 / 220

An area previously supporting life is made barren, the subsequent recolonization is called ______.

UHS 2018
Biology
Man and His Environment
Ecological Succession
Elimination Tool:

A) Climax community

B) Pioneer succession

C) Primary succession

D) Secondary succession

205 / 220

Chance of a cross over between two loci is directly proportional to their

UHS 2018
Biology
Cell Cycle
Meiosis
Elimination Tool:

A) Thickens

B) Width

C) Length

D) Distance

206 / 220

Which lipid is hydrophilic and soluble?

UHS 2018
Biology
Biological Molecules
Lipids
Elimination Tool:

A) Triglycerides

B) Phospholipids

C) Waxes

D) Terpenoids

207 / 220

Which one of the following cells does not have nucleus:

UHS 2018
Biology
Transport
Elimination Tool:

A) Eosinophils

B) Neutrophils

C) Basophils

D) Platelets

208 / 220

Keeping correct balance of ions and water in our body is called as:

UHS 2018
Biology
Homeostasis
Osmoregulation
Elimination Tool:

A) Thermoregulation

B) Osmoregulation

C) Excretion

D) Selective reabsorption

209 / 220

Number of salivary glands found in the human oral cavity.

UHS 2018
Biology
Nutrition
Digestion and Absorption
Elimination Tool:

A) 4

B) 3

C) 6

D) 2

210 / 220

Salivary Amylase begins to digest Starch to shorter polysaccharides and then to:

UHS 2018
Biology
Nutrition
Digestion and Absorption
Elimination Tool:

A) Glucose

B) Maltose

C) Sucrose

D) Lactose

211 / 220

Tonoplast bounds which organelle:

UHS 2018
Biology
Cell Structure and Function
Cytoplasm and Organelles
Elimination Tool:

A) Golgi complex

B) Nucleus

C) Endoplasmic Reticulum

D) Vacuoles

212 / 220

Scapula is a:

UHS 2018
Biology
Support and Movement
Human Skeleton
Elimination Tool:

A) Tail bone

B) Hip bone

C) Skull bone

D) Shoulder bone

213 / 220

If concentration time graph of a reactant indicates a constant half life, then the order reaction with respect to that reactant is:

UHS 2018
Chemistry
Reaction Kinetics
Order of reaction and its determination
Elimination Tool:

A) Zero order

B) Half order

C) Second order

D) First order

214 / 220

Phages which show lysogenic cycle are known as:

UHS 2018
Biology
Bio-diversity | Variety of Life
Elimination Tool:

A) Enveloped Phage

B) Virulent Phage

C) Temperate phages

D) Bacteriophage

215 / 220

The number and sequence of amino acids along a polypeptide chain is called _______ structure of a protein.

UHS 2018
Biology
Biological Molecules
Proteins
Elimination Tool:

A) Quaternary

B) Tertiary

C) Primary

D) Secondary

216 / 220

_________ is the exact position of a gene on the chromosome.

UHS 2018
Biology
Chromosomes and DNA
Types & Composition of Chromosomes
Elimination Tool:

A) Trait

B) Centromere

C) Genotype

D) Locus

217 / 220

Ribosomes are made up of _______ and _________.

UHS 2018
Biology
Cell Structure and Function
Cytoplasm and Organelles
Elimination Tool:

A) Proteins and carbohydrates

B) RNA and lipid

C) RNA and proteins

D) RNA and carbohydrates

218 / 220

NADP, nicotinamide adenine dinucleotide phosphate, is a carrier of:

UHS 2018
Biology
Bioenergetics
Light Dependent Mechanism of Photosynthesis
Elimination Tool:

A) -OH group

B) O2 group

C) Hydrogen

D) Phosphate

219 / 220

Which one of the following act as a PACEMAKER in heart:

UHS 2018
Biology
Transport
Elimination Tool:

A) Bundle of His

B) Atrioventricular node

C) Atrioventricular bundles of fibers

D) Sinoatrial node

220 / 220

______ is the site of light-independent reaction.

UHS 2018
Biology
Bioenergetics
Light Independent Mechanism of Photosynthesis
Elimination Tool:

A) Thylakoid membrane

B) Thylakoid space

C) Stroma

D) Grana

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