VITEEE PCBE Mock Test - 5


125 Questions MCQ Test VITEEE: Subject Wise and Full Length MOCK Tests | VITEEE PCBE Mock Test - 5


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This mock test of VITEEE PCBE Mock Test - 5 for JEE helps you for every JEE entrance exam. This contains 125 Multiple Choice Questions for JEE VITEEE PCBE Mock Test - 5 (mcq) to study with solutions a complete question bank. The solved questions answers in this VITEEE PCBE Mock Test - 5 quiz give you a good mix of easy questions and tough questions. JEE students definitely take this VITEEE PCBE Mock Test - 5 exercise for a better result in the exam. You can find other VITEEE PCBE Mock Test - 5 extra questions, long questions & short questions for JEE on EduRev as well by searching above.
QUESTION: 1

Hollow trunks in trees lead to

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QUESTION: 2

The coordinating structure responsible for an intrinsic heart beat is the

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QUESTION: 3

Colleterial glands are found in

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QUESTION: 4

Which one is essential for nitrogen fixation ?

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QUESTION: 5

The controlling centre of cell is

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QUESTION: 6

Cristae occur in

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QUESTION: 7

Protoplast does not include

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QUESTION: 8

When a natural predator (living being) is applied on some other organism to control them, this process is called

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QUESTION: 9

Fossil reptile having mammalian traits was

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QUESTION: 10

Frog feeding on herbivorous insect is

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QUESTION: 11

Continental drift explains

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QUESTION: 12

Birds and mammals evolved during

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QUESTION: 13

What does lac refer to in lac operon?

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QUESTION: 14

Golden rice is a transgenic crop of the future, with which of the following improved trait ?

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QUESTION: 15

tRNA has two unequal free arms

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QUESTION: 16

A gamete normally contains :

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QUESTION: 17

How many different types of gametes can be formed by F1 progeny resulting from the following cross?
AABBCC x aabbcc

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QUESTION: 18

Autosomal recessive traits are

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QUESTION: 19

In sex-linked traits the males are

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QUESTION: 20

Hepatitis-B vaccine is

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QUESTION: 21

Who discovered vaccine against small pox?

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QUESTION: 22

What is true about T-lymphocytes in mammals?

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QUESTION: 23

Monocot stems differ from dicot stems in that

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QUESTION: 24

In Strychnos, strips of new cambia arise from

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QUESTION: 25

The process in which water is split during photosynthesis is

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QUESTION: 26

Adventitions roots

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QUESTION: 27

Azolla possesses symbiotic associtation with

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QUESTION: 28

Which one of the following substances plays an important role in biochemical defence of host plants?

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QUESTION: 29

Senescence and death are essential in the functioning of

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QUESTION: 30

Escherichia coli is used as an indicator organism to determine pollution of water with

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QUESTION: 31

Treatment of polluted water is carried out with the help of

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QUESTION: 32

The first nuclear explosion was conducted by

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QUESTION: 33

The parasite of endothelial system in man is :

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QUESTION: 34

Cryptorchidism is a condition in which testes are

Solution:

Cryptorchidism is a congenital disorder when one or both of a newborn's testicles fail to descend into the scrotum. Although this condition may occur on both sides, it more commonly affects the right testis. Because the testicles normally descend into the scrotum during the eighth month of gestation, undescended testicles most commonly affect newborns

QUESTION: 35

Unicellular eukaryotes are

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QUESTION: 36

Lamarck's theory of evolution is known as

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QUESTION: 37

Theory of Natural selection dwells on

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QUESTION: 38

Naturalist who sailed round the world in ship Beagle was

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QUESTION: 39

Which of the following symptoms might be an indication of kidney failure?

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QUESTION: 40

Which substance would normally be found in higher concentration in urine than in blood?

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QUESTION: 41

The ratio of peak value and r.m.s. value of an alternating current is

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QUESTION: 42

The ratio of the energy of an X - ray photon of wavelength 1 Å to that of visible light of wave length 500 Å is

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QUESTION: 43

The force experienced by the cathode rays when they pass through an electric field of intensity E → is

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QUESTION: 44

The resistance of a cell does not depend upon

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QUESTION: 45

A battery has e.m.f. 4V and internal resistance r. When this battery is connected to an external resistance of 2 ohms, a current of 1 amp. flows in the circuit. How much current will flow if the terminals of the battery are connected directly

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QUESTION: 46

If there are n capacitors in parallel connected to V volt source, then energy stored is equal to

Solution:

Since the capacitors are connected in parallel to the battery, potential difference across each capacitor will be V. Hence, the total energy stored will be n times the energy stored in a single capacitor.
∴ U = n x 1/2 CV2 = 1/2 n C V2 

QUESTION: 47

If sky wave with a frequency of 50 MHz is incident on D-region at an angle of 300, then angle of refraction is

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QUESTION: 48

Two resistors are connected (a) in series (b) in parallel. The equivalent resistance in the two cases are 9 ohm and 2 ohm respectively. Then the resistances of the component resistors are

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QUESTION: 49

Two wires of the same material are given. The first wire is twice as long as the second and has twice the diameter of the second. The resistance of the first will be

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QUESTION: 50

A 50 ohm galvanometer gets full scale deflection when a current of 0.01 A passes through the coil. When it is converted to a 10 A ammeter, the shunt resistance is

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QUESTION: 51

Mass of a photon of frequency (v) is given by

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QUESTION: 52

The working of a dynamo is based on principle of

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QUESTION: 53

A loop of area 0.1 m2 rotates with a speed of 60 rps perpendicualr to a magnetic field of 0.4 T. If there are 100 turns in the loop, maximum voltage induced in the loop is

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QUESTION: 54

The current in a choke changes from 0 to 10 A in 5 seconds. If the inductance of the choke is 2H the induced emf is

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QUESTION: 55

The difference between soft and hard X-rays is

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QUESTION: 56

If the electric flux entering and leaving an enclosed surface respectively is φ₁ and φ₂, the electric charge inside the surface will be

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QUESTION: 57

Potential energy of two equal positive charges 1 μ C each held 1 m apart in air is

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QUESTION: 58

On moving a charge of 20 C by 2 cm, 2 joule of work is done, then the potential difference between the points is

Solution:

W = QV
∴ V = W/Q = 2/20 = 0.1 volt

QUESTION: 59

The electric field inside a sphere which carries a charge density proportional to the distance from the origin ρ = α r α is a constant is

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QUESTION: 60

A spherical conductor of radius R, placed in air, is given a charge Q and potential at the surface of conductor is V. The potential at a point inside the conductor and at a distance R/2 from its centre is

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QUESTION: 61

Three capacitors of capacitance 3 μF, 10 μF, and 15 μF are connected in series to a source of voltage 100 V. The charge on 15 μF capacitor is

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QUESTION: 62

The magnetic dipole moment of a current loop is independent of

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QUESTION: 63

In a Rutherford scattering experiment when a projectile of charge z1 and mass M1 approaches a target nucleus of charge z2 and mass M2, the distance of closest approach is r0. The energy of the projectile is:

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QUESTION: 64

The number of neutrons in a chain reaction increases in

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QUESTION: 65

A radio active sample has a half life of 5 days. To decay from 8 micro curies to 1 micro-curie, the number of days taken will be

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QUESTION: 66

The electrons are emitted in the photoelectric effect from a metal surface

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QUESTION: 67

Light of wavelength λ falls on a metal having work function hc /λ0  . Photoelectric effect will take place only if

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QUESTION: 68

A ray of light of frequency ν in air enters into glass of refractive index μ. The correct statement is

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QUESTION: 69

A plano convex lens is made refractive index 1.6. The radius of curvature of the curved surface is 60 cm. The focal length of the lens is

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QUESTION: 70

An n - type and p - silicon can be obtained by doping pure silicon with:

Solution:

For obtaining ‘n’ type semi conductor V group element is doped with silicon.
Ex: Phosphorus
For obtaining ‘p’ type semiconductor III group element is doped with silicon.
Ex: Indium

QUESTION: 71

A transistor is operated in common-emitter configuration at Vc = 2 V such that a change in the base current from 100 μ A to 200 μ A produces a change in the collector current from 5 mA to 10 mA. The current gain is:

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QUESTION: 72

When a semiconductor is continuously heated the value of its resistance

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QUESTION: 73

The potential in the depletion layer is due to

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QUESTION: 74

The cause of the potential barrier in a p-n diode is

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QUESTION: 75

When germanium atoms is doped with equal no. of antimony atoms, we get a/an

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QUESTION: 76

The electic circuits used to get smooth d.c. output from a rectified circuit is called

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QUESTION: 77

When a source is linear, the wavefront is

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QUESTION: 78

If the ratio of intensities of two waves causing interference be 9:4, then the ratio of maximum and minimum intensities will be

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QUESTION: 79

A ray of light falls on a transparent glass slab of refractive index 1.62. If the reflected ray and the refracted ray are mutually perpendicular, the angle of incidence is

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QUESTION: 80

In a Young's double slit experiment, I1 ∕ I2  = 16 ∕ 9 . Ratio of maximum to minimum intensity is

Solution:

Intensity ∝ slit width and Intensity ∝ (amplitude)2

QUESTION: 81

Vinyl carbinol is

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QUESTION: 82

Formaldehyde reacts with NaOH(50%). Which one pair of products will be obtained?

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QUESTION: 83

Aldehydes and ketones do not give addition reaction with

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QUESTION: 84

Treatment of furfural with NaOH yields

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QUESTION: 85

Both methane and ethane can be prepared in one step by the reaction of

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QUESTION: 86

The conversion of 2, 3-dibromobutane to 2-butene with Zn is

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QUESTION: 87

An organic compound contains 49.3% carbon, 6.84% hydrogen and its vapour density is 73. Molecular formula of compound is

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QUESTION: 88

The random errors can be eliminated by

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QUESTION: 89

ACTH is secreted by

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QUESTION: 90

Which of the following is a test for proteins?

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QUESTION: 91

In both DNA and RNA, heterocylic base and phosphate ester linkages are at

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QUESTION: 92

Saponification of ethyl benzoate with caustic soda as alkali, gives

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QUESTION: 93

What is the main reason for the fact that carboxylic acids can undergo ionization?

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QUESTION: 94

Which of the following does give violet colour with neutral ferric chloride?

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QUESTION: 95

The equilibrium constant in a reversible chemical reaction at a given temperature

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QUESTION: 96

Which of the following is not correct?

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QUESTION: 97

A heat engine absorbs heat Q1 at temperature T1 and heat Q2 at temperature T2. Work done by the engine is (Q1 + Q2). This data

Solution:

It does not go against first law of thermodynamics .
However it violates the 2nd law of thermodynamics.

QUESTION: 98

If a mixture containing 3 moles of hydrogen and 1 mole of nitrogen is converted completely into ammonia, the ratio of volumes of reactants and products at the same temperature and pressure would be

Solution:

3H2 + N2 → 2NH3
∴ 3V 1V → 2V
Total initial volume = 3V + 1V = 4V
Final volume = 2V
Hence, ratio of initial and final volume will be 2 : 1

QUESTION: 99

Identify the correct statement regarding entropy

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QUESTION: 100

A drug that is antipyretic as well as analgesic is

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QUESTION: 101

The co-ordination no. of the central metal atom, in a complex compound is determined by the no. of ligands around the metal ion is bonded

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QUESTION: 102

The IUPAC name for CH₃CO-CH₃ is

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QUESTION: 103

The hybridisation state of Fe in [Fe(CN)₆]3- and [Fe(H₂O)₆]3+ is

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QUESTION: 104

Which of the following compound results into benzene nitrile on its dehydration?

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QUESTION: 105

At STP,1.12 litre of H₂ is obtained on flowing a current for 965 seconds in a solution.The value of current is

Solution:
QUESTION: 106

Which one of the following is not the correct reaction of aryl diazonium salts?

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QUESTION: 107

In which of the following reaction, hydrogen is acting as an oxidising agent?

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QUESTION: 108

Roasting of an ore is done in

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QUESTION: 109

In an experiment set up for the measurement of e.m.f. of a half-cell using a reference electrode and a salt bridge, when the salt bridge is removed the voltage

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QUESTION: 110

Heating of methyl phenyl ether with HI gives

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QUESTION: 111

If the weight of 5.6 liters of a gas at N.T.P. is 11 gram. The gas may be

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QUESTION: 112

Percentage of lead in lead pencil is

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QUESTION: 113

Arrange the following in order of increasing acidity
H₃PO₄, H₂CO₃, HCl, HI

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QUESTION: 114

The boiling points of the following hydrides follow the order

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QUESTION: 115

Which of the following substance acts as an oxidising as well as a reducing agent ?

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QUESTION: 116

The interionic distance for cesium chloride cystal will be

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QUESTION: 117
Three-dimensional representation of the R-enantiomer of
Solution:
QUESTION: 118

Surface tension of lyophilic sols is

Solution:
QUESTION: 119

Actinides

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QUESTION: 120

Near the top of the blast furnace used for the extraction of iron, the metal oxides are reduced to spongy iron by

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QUESTION: 121

Fill in the blank with appropriate word.
A crescendo of metallic thuds arose from the market, where the iron-smiths were..........the pieces of metals.

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QUESTION: 122

Find the synonym of RECOLLECT

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QUESTION: 123

Find the antonym of ALIVE

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QUESTION: 124

Out of the given alternatives, choose the one which can be substituted for the given capitalised word.

He cannot MAKE BOTH ENDS MEET.

Solution:
QUESTION: 125

Improve the sentence by choosing best alternative for capitalised part of the sentence.

Please TURN OFF the volume of the radio, so that it is not so loud.

Solution:

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