VITEEE PCBE Mock Test - 4


125 Questions MCQ Test VITEEE: Subject Wise and Full Length MOCK Tests | VITEEE PCBE Mock Test - 4


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This mock test of VITEEE PCBE Mock Test - 4 for JEE helps you for every JEE entrance exam. This contains 125 Multiple Choice Questions for JEE VITEEE PCBE Mock Test - 4 (mcq) to study with solutions a complete question bank. The solved questions answers in this VITEEE PCBE Mock Test - 4 quiz give you a good mix of easy questions and tough questions. JEE students definitely take this VITEEE PCBE Mock Test - 4 exercise for a better result in the exam. You can find other VITEEE PCBE Mock Test - 4 extra questions, long questions & short questions for JEE on EduRev as well by searching above.
QUESTION: 1

The bark of tree comprises

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QUESTION: 2

Spiders and scorpion belongs to class

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QUESTION: 3

Joining of repeating units to form a macromolecules is called

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QUESTION: 4

Use the following characteristics to answer the question: one-way valves thin elastic layer near skeletal muscle These characteristics describe which type of vessel?

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QUESTION: 5

Cristae are associated with which of the following organelle?

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QUESTION: 6

Prokaryotic ribosomes are

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QUESTION: 7

Chloroplasts fix

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QUESTION: 8

Quinine is obtained from

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QUESTION: 9

In comparative study of grassland and pond ecosystems

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QUESTION: 10

Evolution of a species or group can be studied through

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QUESTION: 11

A connecting link between reptiles and bird is

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QUESTION: 12

Potato and Sweet Potato have edible parts which are

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QUESTION: 13

The most abundant RNA of cell is

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QUESTION: 14

RNA that picks up specfic amino acid from amino acid pool of cytoplasm to carry it to ribosome during protein synthesis is

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QUESTION: 15

Eschirichia coli with completely radioactive DNA was allowed to replicate is non-radioactive medium for two generations. Percentage of bacteria with radioactive DNA is

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QUESTION: 16

Had Mendal decided to study those traits together which are determined by linked genes, he would not have found out

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QUESTION: 17

Alleles of a gene are found on

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QUESTION: 18

In sickle cell anaemia, death occurs when lethal genes are present in

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QUESTION: 19

AIDS is caused by

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QUESTION: 20

If an albino marries a normal woman and 50% offspring are albino, the woman is

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QUESTION: 21

An autoimmune disease is

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QUESTION: 22

Study of interaction of antigen and antibody in blood is

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QUESTION: 23

Among the following which one is not a modificatin of stem

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QUESTION: 24

If a fruit is developed from (2G) ovary with parietal placentation ,unilocular when young becoming bilocular at maturity and the length of the fruit is less than its breath,the fruit would be called as

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QUESTION: 25

At maturity, which of the following is non-nucleated ?

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QUESTION: 26

Which of the following is least effective in photosynthesis

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QUESTION: 27

In which one of the following pathogens do the cells of promycelium after the germination of teleutospore produce infection hyphae instead of basidiospores?

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QUESTION: 28

The application of engineering and technological principles to the life sciences is called

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QUESTION: 29

Sieve tubes possess

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QUESTION: 30

Respiratory disorders occur due to automobile exhaust because of

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QUESTION: 31

Ionising radiation includes

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QUESTION: 32

Treatment of polluted water is carried out with the help of

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QUESTION: 33

Protozoa reproduce by several methods. Which protozoan reproduces both by binary fission and conjugation?

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QUESTION: 34

The part of the sperm that contains hydrolytic enzymes is the

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QUESTION: 35

de Vries called variants as

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QUESTION: 36

The TMV capsid has capsomeres numbering

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QUESTION: 37

Frequency of a gene in a population will increase if the gene is

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QUESTION: 38

Presence of different types of beaks in finches of Galapagos islands adapted to different feeding habits provides evidence for

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QUESTION: 39

Pressure filtration occurs at the

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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

If E₀ represents the peak value of the voltage in an A.C. circuit, the r.m.s. value of the voltage will be

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QUESTION: 42

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

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QUESTION: 43

Two spherical conductors each of capacity C are charged to potential V and -V. These are then connected by mean of a fine wire. The loss of energy is

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QUESTION: 44

In compton scattering process, the incident X -rays radiations is scattered at an angle 600. The wavelength of the scattered radiations is 0.22 Å . The wavelength of the incident X - radiation in Å units is 

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QUESTION: 45

The internal resistance of a primary cell is 4 Ω. It generates a current of 0.2 A in an external resistance of 21 Ω. The rate at which chemical energy is consumed in providing the current is

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QUESTION: 46

A galvanometer of resistance 36 Ω is changed into an ammeter by using a shunt of 4 Ω. The fraction f₀ of total current passing through the galvanometer is

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QUESTION: 47

Optical fibres uses the phenomenon of

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QUESTION: 48

If the length of a conductor is halved, then its conductance will be

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QUESTION: 49

A cell of internal resistance 1.5Ω and of e.m.f. 1.5 volt balances 500 cm on a potentiometer wire. If a wire of 1.5 Ω is connected between the balance point and the cell, then the balance point will shift

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QUESTION: 50

A beam of electrons is moving with constant velocity in a region having electric and magnetic fields of strength 20 Vm-1 and 0.5 T at right angles to the direction of motion of the electrons. What is the velocity of the electrons

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QUESTION: 51

When the length and area of cross-section both are doubled, then its resistance

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QUESTION: 52

Choke coil works on the principle of

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QUESTION: 53

If a half wave rectifire is used to convert 50 Hz a.c. into d.c., then the number of pulses present in rectified voltage is

Solution:

50 Hz a.c. has 100 pulses/sec .
In half wave rectifier negative pulses are missing.
Therefore, rectified voltage has 50 pulses/sec.

QUESTION: 54

An electromagnet has stored 648 J of energy, when a current of 9 A exists in its coils. If the current is reduced to zero in 0.3 s, then average induced e.m.f. in the coils is

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QUESTION: 55

Which of the following is/are not electromagnetic waves?

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QUESTION: 56

A sphere S1 of radius r1 encloses a total charge Q. If there is another concentric sphere S1 of radius r 2 > r 1 and there be no additional charges between S1 and S2, the ratio of electric flux through S1 and S2 is

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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

If a point charge q be rotated in a circle of radius r around a charge Q, the work done will be

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QUESTION: 59

A capacitor of capacitance 1 μ F is charged to 1KV. The energy stored in the capacitor in joules is

Solution:

C = 1μF
V = 1KV
energy stored U = 1/2 (CV2)
= 1/2 x 1 x 12 = 0.5

QUESTION: 60

Two equal charges q each are placed at a distance of 2a. If a third charge-2q is placed at the mid-point, then potential energy of the system is

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QUESTION: 61

A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor

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QUESTION: 62

An electric current passes through a long straight wire. At a distance 5cm from wire, the magnetic field is B. The field at 20cm from the wire would be

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QUESTION: 63

Which shows radioactivity?

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QUESTION: 64

In a nuclear reactor heavy water is used as a

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QUESTION: 65

In a chain reaction uranium atom gets fissioned forming two different materials. Then total weight of these put together is

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QUESTION: 66

When the light source is kept 20 cm away from a photo cell, stopping potential 0.6 V is obtained. When source is kept 40 cm away, the stopping potential will be

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QUESTION: 67

By increasing the intensity of incident light on the surface of a metal

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QUESTION: 68

The dark lines in the solar spectrum are due to

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QUESTION: 69

An object of height 1.5 cm is placed on the axis of a convex lens of focal length 25 cm. A real image is formed at a distance of 75 cm from the lens. The size of image will be

Solution:

O = 1.5

QUESTION: 70

Which is true about the following? I An amplifier is necessarily an oscillator too II An oscillator is necessarily an amplifier too

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QUESTION: 71

When the p-end of the p-n junction is connected to the negative terminal of the battery and the n-end to the positive terminal of the battery, then the p-n junction behaves like

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QUESTION: 72

Which of the following relation is true about a transistor?

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QUESTION: 73

In p-type semiconductor

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QUESTION: 74

A semiconductor device is connected in a series circuit with a battery and a resistance. A current is found to pass through the circuit. If the polarity of the battery is reversed, the current drops almost to zero. The device may be

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QUESTION: 75

P-N junction is said to be forward biased, when

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QUESTION: 76

In a P-type semiconductor, germanium is doped with

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QUESTION: 77

Huygen's wave theory of light can not explain

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QUESTION: 78

If the two slits in Young's experiment have width ratio 1:4, the ratio of intensity at maxima and minima in the interference pattern in

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QUESTION: 79

When a source is linear, the wavefront is

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QUESTION: 80

The light from a sodium vapour lamp passes through a single narrow slit and then through two close, parallel narrow slits. The single slit lies on the perpendicular bisector of the line joining the two close, parallel slits. An observer looking towards the lamp through the double slit will see

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QUESTION: 81

Glycerol can be obtained from

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QUESTION: 82

1-Phenylethanol can be prepared by reaction of benzaldehyde with

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QUESTION: 83

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

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QUESTION: 84

Which of the following reagent react differently with HCHO and CH₃CHO and CH₃COCH₃

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QUESTION: 85

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

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QUESTION: 86

Propene when heated with chlorine at about 5000C forms

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QUESTION: 87

Leucine amino acids is

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QUESTION: 88

The number of atoms in 4.25 g of NH₃ is approximately

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QUESTION: 89

The empirical formula of an acid is CH₂O₂, the probable molecular formula of acid may be

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QUESTION: 90

Which of the following statements about ribose is incorrect?

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QUESTION: 91

Among the naturally occuring carbohydrates, furanose ring is found in

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QUESTION: 92

Which reagent will bring about the conversion of carboxylic acids into esters ?

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QUESTION: 93

A liquid is in equilibrium with its vapour at its boiling point. The molecules in these two phases will have equal

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QUESTION: 94

Consider the following reaction occuring in a automobile engine 2C₈H₈(g) + 25O₂(g) → 16CO₂(g) + 18H₂O(g). The signs of ∆H, ∆S and ∆G for above reaction would be

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QUESTION: 95

In a closed insulated container, a liquid is stirred with a paddle to increase its temperature. In this process, which of the following is true?

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QUESTION: 96

An organic acid having molecular formula C₂H₄O₂ is

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QUESTION: 97
Formic acid when treated with H₂SO₄ gives
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QUESTION: 98

In a reversible reaction, the catalyst

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QUESTION: 99

Trannquilisers are substances used for the treatment of

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QUESTION: 100

In thermodynamics, a process is called reversible when

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QUESTION: 101

A ligand can also be regarded as

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QUESTION: 102

The IUPAC name of [Cr(NH₃)₆]3+ is

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QUESTION: 103

The IUPAC name of acraldehyde is

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QUESTION: 104

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

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QUESTION: 105

The resistance of 1 N solution of acetic acid is 250 ohm, when measured in a cell of cell cosntant 1.15 cm⁻1. The equivalent conductance (in ohm⁻1 cm2 equiv⁻1) of 1 N acetic acid is

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QUESTION: 106

The time required to deposit one millimole of aluminum metal from Al₂O₃, by passing 9.65 amperes through aqueous solution of aluminum ion is

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QUESTION: 107

The indicator that is obtained by coupling the diazonium salt of sulphanilic acid with N,N-dimethylaniline is

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QUESTION: 108

Methylphenylether can be obtained by reacting

Solution:

By the Williamson synthesis
C6H5O - + CH3l → C6H5OCH3 + l -

QUESTION: 109

Out of Cu, Ag, Fe and Zn, the metal which can displace all others from their salt solutions is

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QUESTION: 110

Which one of the following substances is used in the laboratory for drying of neutral gases?

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QUESTION: 111

Which of the following is not used as a pigment in paints?

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QUESTION: 112

Which of the following has highest dipole moment?

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QUESTION: 113

At STP, a container has 1 mole of Ar, 2 moles of CO2,3 moles of O2 and 4 moles of N2. Without changing the total pressure if one mole of O2 is removed, the partial pressure of O2

Solution:

Total moles of gases = 10 Let the pressure be P
∴ Partial pressure of oxygen (po2) = 3P/10
No. of mol of O2 in the mixture after removal of 1 mol of O2 = 2
Total moles = 9
Partial pressure of oxygen after removal of O2 (p'o2) = 2P/9
Decrease in partial pressure of O2
= 3P/10 - 2P/9 = 0.078 P
% decrease = 0.078 P x 100/3P = 26%

QUESTION: 114

Which of the following has the same oxidation state as that of Cr in K₂CrO₃

Solution:
QUESTION: 115

Mixture used for the tips of match stick is

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QUESTION: 116

In a crystal, the atoms are located at the position of

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QUESTION: 117

Alkane, C5H12, in which all H-atoms are equivalent is:

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QUESTION: 118

An emulsifier is a substance which

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QUESTION: 119

AgO formed by oxidation of Ag₂O is

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QUESTION: 120

White copper sulphate decomposes to give

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QUESTION: 121

Find the antonym of CELIBATE

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QUESTION: 122

Fill in the blank with appropriate word.
The bureaucrat was.........for his role in the scam.

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QUESTION: 123

Find the Synonym of INFREQUENT

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QUESTION: 124

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

The staff have felt ON EDGE since they heard the rumour about retrenchment.

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QUESTION: 125

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

Poor Tom LAID in the shade of a tree before he could walk further.

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