VITEEE PCBE Mock Test - 2


125 Questions MCQ Test VITEEE: Subject Wise and Full Length MOCK Tests | VITEEE PCBE Mock Test - 2


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This mock test of VITEEE PCBE Mock Test - 2 for JEE helps you for every JEE entrance exam. This contains 125 Multiple Choice Questions for JEE VITEEE PCBE Mock Test - 2 (mcq) to study with solutions a complete question bank. The solved questions answers in this VITEEE PCBE Mock Test - 2 quiz give you a good mix of easy questions and tough questions. JEE students definitely take this VITEEE PCBE Mock Test - 2 exercise for a better result in the exam. You can find other VITEEE PCBE Mock Test - 2 extra questions, long questions & short questions for JEE on EduRev as well by searching above.
QUESTION: 1

Tyloses are thickenings seen in

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QUESTION: 2

The part of cockroach having both exoskeleton and endoskeleton (tentorium and apodemes) is

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QUESTION: 3

Drug belladona is got from

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QUESTION: 4

80 S ribosomes are made up of

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QUESTION: 5

Which of the following blood vessels has a thin elastic layer?

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QUESTION: 6

Conversion of green tomatoes into red form involves

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QUESTION: 7

The decreasing order of mineral concentration in a cell is

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QUESTION: 8

Middle lamella is

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QUESTION: 9

An ecosystem has two components such as

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QUESTION: 10

Analogous organs are

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QUESTION: 11

Angiosperms flourished during

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QUESTION: 12

Homologous organs are

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QUESTION: 13

Enzyme required for removing RNA primer during DNA replication is

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QUESTION: 14

Intron is part of DNA which

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QUESTION: 15

According to Chargaff rule

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QUESTION: 16

Epistasis in which dihybrid ratio of 9:3:3:1 between AaBb X AaBb is modified is

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QUESTION: 17

In Red-White flowered cross of Mirabilis jalapa, F generation has red, pink and white flowered plants in the ratio of

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QUESTION: 18

Recessive trait disorders are characterised by

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QUESTION: 19

In sex-linked traits the males are

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QUESTION: 20

T-lymphocytes recognise

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QUESTION: 21

HIV has a protein coat and a genetic material which is

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QUESTION: 22

Surgical removal of thymus of a new born shall result in failure to produce

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QUESTION: 23

Which of the following is incorrect matched pair?

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QUESTION: 24

Tunica Corpus theory was proposed by

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QUESTION: 25

Censer mechanism of fruit dispersal is found in

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QUESTION: 26

Which one dies first when a ring of bark is removed

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QUESTION: 27

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

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QUESTION: 28

For the manufacture of wines and beers the microorganism that is employed is

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QUESTION: 29

Bordered pits are more common in

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QUESTION: 30

Gas released during Bhopal tragedy was

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QUESTION: 31

The two great industrial tragedies namely, MIC and chernobyl, respectively occured where and when?

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QUESTION: 32

Increase in the concentration of pollutants in higher trophic levels is called

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QUESTION: 33

Kala-azar is a disease caused by :

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QUESTION: 34

Pseudopregnancy is due to

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QUESTION: 35

Mammalia is a

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QUESTION: 36

Select the correct statement

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QUESTION: 37

Protophytes were dominant during - period

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QUESTION: 38

Fossils of organisms found in South America resemble most of the fossils in

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QUESTION: 39

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

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QUESTION: 40

Which substance is found in the glomerulus, Bowman’s capsule and efferent arteriole but is not normally found in the collecting duct?

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QUESTION: 41

Voltage and current in an A.C. circuit are given by V = 5 sin(100πt - π/6) and I = 4sin(100πt + π/6)

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QUESTION: 42

Continuous emission spectrum is produced by

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QUESTION: 43

Δ λ is the difference between the wavelength of Kα line and the minimum wavelength of a continuous X - ray spectrum when the X - ray tube is operated at a voltage V. If the operating voltage is changed to V/3 , then the above difference is Δλ1 . Then

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QUESTION: 44

A parallel plate capacitor is filled by copper plate of thickness b. The new capacity will be

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QUESTION: 45

A steady current of 1.5 A flows through a copper voltameter for 10 min. If the electrochemical equivalent of copper is 30 x 10-5 g C-1 , the mass of copper deposited on the electrode will be

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QUESTION: 46

Optical fibres uses the phenomenon of

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QUESTION: 47

A car battery has e.m.f. 12 volt and internal resistance 5 x 10-2 ohm. If it draws 60 ampere current, the terminal voltage of the battery will be

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QUESTION: 48

Two cells with the same e.m.f 'E' and different internal resistances r1 and r2 are connected in series to an external resistance R. The value of R so that the potential difference across the first cell be zero is

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QUESTION: 49

Four resistances 10 Ω , 5 Ω , 7 Ω and 3 Ω are connected so that they form the sides of a rectangle AB, BC, CD and DA respectively. Another resistance of 10 Ω is connected across the diagonal AC. The equivalent resistance between a A and B is

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QUESTION: 50

The net resistance of a voltmeter should be large to ensure that

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QUESTION: 51

In Thomson's experiment of finding e/m for electrons, beam of electron is replaced by that of muons (particle with same charge as that of electrons but of mass 208 times that of electron). No deflection condition in this case is satisfied if

Solution:

In the condition of no deflection e/m = E2/2VB2 
⇒ If m is increased by 208 times then B should be increased 208 = 14.4 times

QUESTION: 52

The working of a dynamo is based on principle of

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QUESTION: 53

The unit of inductance is equivalent to

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QUESTION: 54

The wing span of an aeroplane is 36 m. If the plane is flying at 400 km/h, the e.m.f. induced between the wings tips is (assume V=4X10)

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QUESTION: 55

Which radiation in sunlight, cause heating effect?

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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

Two equal charges q of opposite sign separated by a distance 2a constitute an electric dipole of dipole moment p. If P is a point at a distance r from the centre of the dipole and the line joining centre to this point makes an angle θ with the axis of the dipole, then potential at the point P is given by

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QUESTION: 59

Minimum no. of 8 μF and 250 V capacitors, used to make a combination of 16 μF and 1000 V, is

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QUESTION: 60

A 10 μF capacitor is charged to a potential difference 50 V and it is then connected to another uncharged capacitor in parallel. If common potential difference becomes 20 V, then capacitance of the second capacitor is

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QUESTION: 61

Two point charges each equal to 2μC are 0.5 m apart. If both of them exist inside vaccum, then electrostatic force between them is

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By using F = 9x109 . Q2 /r2

QUESTION: 62

If current in a moving coil galvanometer is increased by 1%, then percentage increase in its deflection will be

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QUESTION: 63

Number of particles emitted in the reaction is

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QUESTION: 64

In a nuclear reactor heavy water is used as a

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QUESTION: 65

If MO is the mass of an oxygen isotope 8O17 , Mp and Mn are the masses of a proton and a neutron, respectively, the nuclear binding energy of the isotope is

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QUESTION: 66

Light of wavelength 5000Å falls on a sensitive plate with photoelectric work function of 1.9 eV. The kinetic energy of the photoelectron emitted will be

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QUESTION: 67

In photoelectric effect experiment, the stopping potential for incident light of wave-length 4000 Å is 2 volt. If the wavelength is changed to 3000 Å, the stopping potential is

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QUESTION: 68

The distance between eye lens and cross wire in Ramsden eye piece which has a field lens of focal length 1.2 cm is .......cm.

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QUESTION: 69

If the dispersive power of a lens material of focal length 20 cm is 0.08, then longitudinal chromatic aberration of the lens is

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QUESTION: 70

In a transistor circuit, when the base current in increased by 50 micro - amperes keeping the collector voltage fixed at 2 volts, the collector current increases by 1 m A. The current gain of the transistor is

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QUESTION: 71

If no external voltage is applied across p-n junction, there would be

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QUESTION: 72

Zener diode is used for

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QUESTION: 73

Consider the following statements A and B and identify the correct choice of the given answers.
A: The width of the depletion layer in a P-N junction diode increases in forwards bias
B: In an intrinsic semiconductor the fermi energy level of exactly in the middle of the forbidden gap

Solution:
QUESTION: 74

A semiconductor is cooled from T₁K to T₂K. Its resistance

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QUESTION: 75

Avalanche breakdown is due to

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QUESTION: 76

In the depletion region of an unbiased P-N junction diode there are

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QUESTION: 77

A Nicol prism can be used

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QUESTION: 78

A train is approaching a platform with a velocity ν. The frequency heard by an observer standing at the station is

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QUESTION: 79

Both light and sound waves produce diffraction. It is more difficult to observe the diffraction with light waves because

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QUESTION: 80

The ray of light

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QUESTION: 81

2R ― OH + 2Na → 2RONa + H₂. In the above reaction the reactivity of different alcohols is

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QUESTION: 82

Reduction of aldehydes with HI give

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QUESTION: 83

Which of the following does not turn Schiff's reagent to pink ?

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QUESTION: 84

When vapours of isopropyl alcohol are passed over heated copper, the major product obtained is

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QUESTION: 85

How many monochlorobutanes will be obtained on chlorination of n-butane?

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QUESTION: 86

Acid catalysed hydration of alkenes except ethene leads to the formation of

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QUESTION: 87

The atomic weight of a substance is expressed in

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QUESTION: 88

How many moles of Helium gas occupy 22.4 L at 0oC at 1 atm. pressure?

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QUESTION: 89

Among the following the achiral amino acid is

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QUESTION: 90

Which substance is not present in nucleic acid?

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QUESTION: 91

The protein which maintains blood sugar level is

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QUESTION: 92

Which one of the following esters is obtained by the esterification of propan-2-ol with ethanoic acid?

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QUESTION: 93

The acid showing salt like character in aqueous solutions is

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QUESTION: 94

Dimerisation in carboxylic acid is due to

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QUESTION: 95

Chemical equilibrium is dynamic in nature, because

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The two opposite processes, forward reaction and reverse reaction, keep on occurring in it all the time but at exactly equal rates (or equal speeds)
A chemical reaction does not stop after reaching the equilibrium state, only the rate of the forward and the reverse reactions become equal at the equilibrium state

QUESTION: 96

The law of mass action was given by

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QUESTION: 97

For an ideal gas, the relation between the enthalpy change and internal energy change at constant temperature is given by

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QUESTION: 98

For a reaction at 300 K, enthalpy and entropy changes are -11.5 x 103 J mol-1 and -105J K-1 mol-1 respectively. What is the change in Gibbs free energy?

Solution:

ΔG = ΔH - TΔS
= -(115x 10)3 - [300 (-105)]
= 11500 - (- 31500) = 20000 J mol-1
= 20 kJ mol-1

QUESTION: 99

Which of the following is an endothermic reaction?

Solution:

A reaction in which heat is absorbed when reactants are converted into products is called endothermic reaction
N2 g + O2 g + 180.8 K J → 2 NO g
During the reaction heat is absorbed, by the system from the surroundings and ΔH is + ve
So the reaction is endothermic reaction

QUESTION: 100

The substance used in the preparation of malachine green is

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QUESTION: 101

The most stable conformation of n-butane is

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QUESTION: 102

In co-ordination compound, the co-ordination number of the metal according to Werner's theory, is

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QUESTION: 103

Which of the following is a complex salt?

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QUESTION: 104

Which of the following is produced by reaction of RCN in sodium and alcohol ?

Solution:
QUESTION: 105

When benzenediazonium chloride in hydrochloric acid reacts with cuprous chloride, then chlorobenzene is formed. The reaction is called

Solution:
QUESTION: 106

Which of the following is not a strong electrolyte?

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QUESTION: 107

What is the electrochemical equivalent (in g coulomb-1) of silver?
(Ag = 108; F = Faraday)

Solution:
QUESTION: 108

The unit ohm-1 is used for

Solution:
QUESTION: 109

Ether is obtained from ethyl alcohol

Solution:
QUESTION: 110

Chile salt petre is

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QUESTION: 111

A sample of gas occupise 100 ml at 27oC and 740 mm pressure. When its volume is changed to 80 ml at 740 mm pressure, the temperature of the gas will be

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QUESTION: 112

Which one of these is acidic?

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QUESTION: 113

At.No. of N is 7, the At. No. of the third member of nitrogen family will be

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QUESTION: 114

BCl₃ is a planar molecule whereas Ncl₃ is pyramidal because

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QUESTION: 115

Which of these substances is a good reducing agent?

Solution:
QUESTION: 116
Coordination number for Cu is
Solution: Coordination number of ccp (cubic close packing) arrangement is 12
Copper (cu) has ccp structure hence coordination no is 12
QUESTION: 117

Select correct statement(s):

Solution:
QUESTION: 118

Adsorbed acetic acid on activated charcoal is

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QUESTION: 119

Which oxide of manganese is amphoteric?

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QUESTION: 120

The metal which does not form coloured compounds is

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QUESTION: 121

Find the antonym of ABANDON

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QUESTION: 122

Fill in the blank with appropriate word.
If a speech is full of pompous words, it is.........

Solution:
QUESTION: 123

Find the synonym of ABSONANT

Solution:
QUESTION: 124

Choose the alternative which best expresses the meaning of the idiom/phrase.

Bring forth

Solution:
QUESTION: 125

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

I will tell you if and when it WILL BE COMPLETED.

Solution:

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