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VITEEE PCBE Mock Test - 4


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

VITEEE PCBE Mock Test - 4 for JEE 2023 is part of VITEEE: Subject Wise and Full Length MOCK Tests preparation. The VITEEE PCBE Mock Test - 4 questions and answers have been prepared according to the JEE exam syllabus.The VITEEE PCBE Mock Test - 4 MCQs are made for JEE 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for VITEEE PCBE Mock Test - 4 below.
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VITEEE PCBE Mock Test - 4 - Question 1

The bark of tree comprises

VITEEE PCBE Mock Test - 4 - Question 2

Spiders and scorpion belongs to class

VITEEE PCBE Mock Test - 4 - Question 3

Joining of repeating units to form a macromolecules is called

VITEEE PCBE Mock Test - 4 - 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?

VITEEE PCBE Mock Test - 4 - Question 5

Cristae are associated with which of the following organelle?

VITEEE PCBE Mock Test - 4 - Question 6

Prokaryotic ribosomes are

VITEEE PCBE Mock Test - 4 - Question 7

Chloroplasts fix

VITEEE PCBE Mock Test - 4 - Question 8

Quinine is obtained from

VITEEE PCBE Mock Test - 4 - Question 9

In comparative study of grassland and pond ecosystems

VITEEE PCBE Mock Test - 4 - Question 10

Evolution of a species or group can be studied through

VITEEE PCBE Mock Test - 4 - Question 11

A connecting link between reptiles and bird is

VITEEE PCBE Mock Test - 4 - Question 12

Potato and Sweet Potato have edible parts which are

VITEEE PCBE Mock Test - 4 - Question 13

The most abundant RNA of cell is

VITEEE PCBE Mock Test - 4 - Question 14

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

VITEEE PCBE Mock Test - 4 - 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

VITEEE PCBE Mock Test - 4 - Question 16

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

VITEEE PCBE Mock Test - 4 - Question 17

Alleles of a gene are found on

VITEEE PCBE Mock Test - 4 - Question 18

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

VITEEE PCBE Mock Test - 4 - Question 19

AIDS is caused by

VITEEE PCBE Mock Test - 4 - Question 20

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

VITEEE PCBE Mock Test - 4 - Question 21

An autoimmune disease is

VITEEE PCBE Mock Test - 4 - Question 22

Study of interaction of antigen and antibody in blood is

VITEEE PCBE Mock Test - 4 - Question 23

Among the following which one is not a modificatin of stem

VITEEE PCBE Mock Test - 4 - 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

VITEEE PCBE Mock Test - 4 - Question 25

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

VITEEE PCBE Mock Test - 4 - Question 26

Which of the following is least effective in photosynthesis

VITEEE PCBE Mock Test - 4 - 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?

VITEEE PCBE Mock Test - 4 - Question 28

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

VITEEE PCBE Mock Test - 4 - Question 29

Sieve tubes possess

VITEEE PCBE Mock Test - 4 - Question 30

Respiratory disorders occur due to automobile exhaust because of

VITEEE PCBE Mock Test - 4 - Question 31

Ionising radiation includes

VITEEE PCBE Mock Test - 4 - Question 32

Treatment of polluted water is carried out with the help of

VITEEE PCBE Mock Test - 4 - Question 33

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

VITEEE PCBE Mock Test - 4 - Question 34

The part of the sperm that contains hydrolytic enzymes is the

VITEEE PCBE Mock Test - 4 - Question 35

de Vries called variants as

VITEEE PCBE Mock Test - 4 - Question 36

The TMV capsid has capsomeres numbering

VITEEE PCBE Mock Test - 4 - Question 37

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

VITEEE PCBE Mock Test - 4 - Question 38

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

VITEEE PCBE Mock Test - 4 - Question 39

Pressure filtration occurs at the

VITEEE PCBE Mock Test - 4 - Question 40

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

VITEEE PCBE Mock Test - 4 - 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

VITEEE PCBE Mock Test - 4 - Question 42

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

VITEEE PCBE Mock Test - 4 - Question 43

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 

Detailed Solution for VITEEE PCBE Mock Test - 4 - Question 43

VITEEE PCBE Mock Test - 4 - Question 44

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

VITEEE PCBE Mock Test - 4 - 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

VITEEE PCBE Mock Test - 4 - 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

VITEEE PCBE Mock Test - 4 - Question 47

Optical fibres uses the phenomenon of

VITEEE PCBE Mock Test - 4 - Question 48

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

VITEEE PCBE Mock Test - 4 - 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

VITEEE PCBE Mock Test - 4 - 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

VITEEE PCBE Mock Test - 4 - Question 51

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

VITEEE PCBE Mock Test - 4 - Question 52

Choke coil works on the principle of

VITEEE PCBE Mock Test - 4 - 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

Detailed Solution for VITEEE PCBE Mock Test - 4 - Question 53

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

VITEEE PCBE Mock Test - 4 - 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

VITEEE PCBE Mock Test - 4 - Question 55

Which of the following is/are not electromagnetic waves?

VITEEE PCBE Mock Test - 4 - 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

VITEEE PCBE Mock Test - 4 - Question 57

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

VITEEE PCBE Mock Test - 4 - Question 58

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

VITEEE PCBE Mock Test - 4 - Question 59

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

Detailed Solution for VITEEE PCBE Mock Test - 4 - Question 59

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

VITEEE PCBE Mock Test - 4 - 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

Detailed Solution for VITEEE PCBE Mock Test - 4 - Question 60

VITEEE PCBE Mock Test - 4 - Question 61

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

VITEEE PCBE Mock Test - 4 - 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

VITEEE PCBE Mock Test - 4 - Question 63

Which shows radioactivity?

VITEEE PCBE Mock Test - 4 - Question 64

In a nuclear reactor heavy water is used as a

VITEEE PCBE Mock Test - 4 - Question 65

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

VITEEE PCBE Mock Test - 4 - 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

VITEEE PCBE Mock Test - 4 - Question 67

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

VITEEE PCBE Mock Test - 4 - Question 68

The dark lines in the solar spectrum are due to

VITEEE PCBE Mock Test - 4 - 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

Detailed Solution for VITEEE PCBE Mock Test - 4 - Question 69

O = 1.5

VITEEE PCBE Mock Test - 4 - Question 70

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

VITEEE PCBE Mock Test - 4 - 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

VITEEE PCBE Mock Test - 4 - Question 72

Which of the following relation is true about a transistor?

VITEEE PCBE Mock Test - 4 - Question 73

In p-type semiconductor

VITEEE PCBE Mock Test - 4 - 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

VITEEE PCBE Mock Test - 4 - Question 75

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

VITEEE PCBE Mock Test - 4 - Question 76

In a P-type semiconductor, germanium is doped with

VITEEE PCBE Mock Test - 4 - Question 77

Huygen's wave theory of light can not explain

VITEEE PCBE Mock Test - 4 - 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

Detailed Solution for VITEEE PCBE Mock Test - 4 - Question 78

VITEEE PCBE Mock Test - 4 - Question 79

When a source is linear, the wavefront is

VITEEE PCBE Mock Test - 4 - 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

VITEEE PCBE Mock Test - 4 - Question 81

Glycerol can be obtained from

VITEEE PCBE Mock Test - 4 - Question 82

1-Phenylethanol can be prepared by reaction of benzaldehyde with

VITEEE PCBE Mock Test - 4 - Question 83

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

VITEEE PCBE Mock Test - 4 - Question 84

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

VITEEE PCBE Mock Test - 4 - Question 85

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

Detailed Solution for VITEEE PCBE Mock Test - 4 - Question 85
VITEEE PCBE Mock Test - 4 - Question 86

Propene when heated with chlorine at about 5000C forms

VITEEE PCBE Mock Test - 4 - Question 87

Leucine amino acids is

VITEEE PCBE Mock Test - 4 - Question 88

The number of atoms in 4.25 g of NH₃ is approximately

Detailed Solution for VITEEE PCBE Mock Test - 4 - Question 88

VITEEE PCBE Mock Test - 4 - Question 89

Which of the following statements about ribose is incorrect?

VITEEE PCBE Mock Test - 4 - Question 90

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

VITEEE PCBE Mock Test - 4 - Question 91

Among the naturally occuring carbohydrates, furanose ring is found in

VITEEE PCBE Mock Test - 4 - Question 92

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

VITEEE PCBE Mock Test - 4 - Question 93

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

VITEEE PCBE Mock Test - 4 - 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

VITEEE PCBE Mock Test - 4 - 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?

VITEEE PCBE Mock Test - 4 - Question 96

An organic acid having molecular formula C₂H₄O₂ is

VITEEE PCBE Mock Test - 4 - Question 97
Formic acid when treated with H₂SO₄ gives
VITEEE PCBE Mock Test - 4 - Question 98

In a reversible reaction, the catalyst

VITEEE PCBE Mock Test - 4 - Question 99

Trannquilisers are substances used for the treatment of

VITEEE PCBE Mock Test - 4 - Question 100

In thermodynamics, a process is called reversible when

VITEEE PCBE Mock Test - 4 - Question 101

A ligand can also be regarded as

VITEEE PCBE Mock Test - 4 - Question 102

The IUPAC name of [Cr(NH₃)₆]3+ is

VITEEE PCBE Mock Test - 4 - Question 103

The IUPAC name of acraldehyde is

VITEEE PCBE Mock Test - 4 - Question 104

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

VITEEE PCBE Mock Test - 4 - Question 105

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

VITEEE PCBE Mock Test - 4 - Question 106

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

VITEEE PCBE Mock Test - 4 - Question 107

Methylphenylether can be obtained by reacting

Detailed Solution for VITEEE PCBE Mock Test - 4 - Question 107

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

VITEEE PCBE Mock Test - 4 - Question 108

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

VITEEE PCBE Mock Test - 4 - Question 109

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

VITEEE PCBE Mock Test - 4 - Question 110

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

VITEEE PCBE Mock Test - 4 - Question 111

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

VITEEE PCBE Mock Test - 4 - Question 112

Which of the following has highest dipole moment?

VITEEE PCBE Mock Test - 4 - 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

Detailed Solution for VITEEE PCBE Mock Test - 4 - Question 113

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%

VITEEE PCBE Mock Test - 4 - Question 114

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

VITEEE PCBE Mock Test - 4 - Question 115

Mixture used for the tips of match stick is

VITEEE PCBE Mock Test - 4 - Question 116

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

VITEEE PCBE Mock Test - 4 - Question 117

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

VITEEE PCBE Mock Test - 4 - Question 118

An emulsifier is a substance which

VITEEE PCBE Mock Test - 4 - Question 119

AgO formed by oxidation of Ag₂O is

VITEEE PCBE Mock Test - 4 - Question 120

White copper sulphate decomposes to give

VITEEE PCBE Mock Test - 4 - Question 121

Find the antonym of CELIBATE

VITEEE PCBE Mock Test - 4 - Question 122

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

VITEEE PCBE Mock Test - 4 - Question 123

Find the Synonym of INFREQUENT

VITEEE PCBE Mock Test - 4 - 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.

VITEEE PCBE Mock Test - 4 - 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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