VITEEE PCBE Mock Test - 14


125 Questions MCQ Test VITEEE: Subject Wise and Full Length MOCK Tests | VITEEE PCBE Mock Test - 14


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This mock test of VITEEE PCBE Mock Test - 14 for JEE helps you for every JEE entrance exam. This contains 125 Multiple Choice Questions for JEE VITEEE PCBE Mock Test - 14 (mcq) to study with solutions a complete question bank. The solved questions answers in this VITEEE PCBE Mock Test - 14 quiz give you a good mix of easy questions and tough questions. JEE students definitely take this VITEEE PCBE Mock Test - 14 exercise for a better result in the exam. You can find other VITEEE PCBE Mock Test - 14 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

Honey mainly consists of:

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QUESTION: 3

A outer covering membrane is absent over

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QUESTION: 4
Endoplasmic reticulum remains attached to
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QUESTION: 5
What is true ?
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QUESTION: 6
Which of the following mineral is found in haemoglobin ?
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QUESTION: 7
Saffron is obtained from
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QUESTION: 8
Outer and inner membranes of mitochondria are
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QUESTION: 9
Which of the following pairs is a sedimentary type of biogeochemical cycle?
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QUESTION: 10
Interacting populations are
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QUESTION: 11
A set of homologous organs is
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QUESTION: 12
Animals of cold countries have shorter ears. This is
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QUESTION: 13
Synthesis of DNA over RNA template/teminism occurs in
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QUESTION: 14
Triplet codon refers to sequence of three bases on
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QUESTION: 15
Biologically functional tryosine suppressor tRNA of Escherichia coli synthesised by Khorana in 1979 had
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QUESTION: 16
Mirabilis jalapa is an example of
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QUESTION: 17
How many types of gametes are found in F₁ progeny of cross between AABBCC and aabbcc
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QUESTION: 18
ABO incompatibility differs from Rh incompatibility in that it
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QUESTION: 19
Recessive trait disorders are characterised by
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QUESTION: 20
A kind of allergy is
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QUESTION: 21
Antibody production is carried out by
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QUESTION: 22
Antibody formation and immunity production by globulin protein is found in
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QUESTION: 23
Fruit of maize is
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QUESTION: 24
Idenfity the plant in which leaf is modified into spine
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QUESTION: 25
Opposite superposed arrangement of leaves is seen in
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QUESTION: 26
In green cell the enzyme catalase is localised in
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QUESTION: 27
Nitrogen fixation occurs in
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QUESTION: 28
Glucose fermentation by yeast yields
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QUESTION: 29
Vascular bundle are absent in
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QUESTION: 30
Lead concentration of blood is considered alarming at
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QUESTION: 31
The undesirable sounds, which disturb our environment, are called
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QUESTION: 32
In Minamata Bay of Japan, the animals which remained free from Minamata disease, are
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QUESTION: 33
Functions of testosterone include
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QUESTION: 34
For prevention against amoebiasis, we should :
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QUESTION: 35
The term,'biosphere' refers to
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QUESTION: 36
Transfer of genes from one gene pool to another is
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QUESTION: 37
Who gave evolutionary concept of determinants?
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QUESTION: 38
Darwin's natural selection is based on
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QUESTION: 39
Which of the following structures would not be considered an organ of excretion?
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QUESTION: 40
The site of tubular excretion is the
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QUESTION: 41

The efficiency of transformer is very high because

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QUESTION: 42

An electron and a proton have the same wave length. Which one of the following statements is correct about them?

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QUESTION: 43

The work function of metals A and B are in the ratio 1 : 2. If light of frequencies f and 2f are incident on metal surfaces of A and B respectively, the ratio of the maximum kinetic energies of photo electrons emitted is (f is greater than threshold frequency of A, 2f is greater than thershold frequency of B)

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QUESTION: 44

A sheet of aluminium is inserted in the air gap between the parallel plate capacitor, without touching any the two plates of the capacitor. The capacitance the capacitor is:

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QUESTION: 45

If sky wave with a frequency of 50 MHz is incident on D-region at an angle of 30o, then angle of refraction is

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QUESTION: 46

The resistance of a cell does not depend upon

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QUESTION: 47

Two resistance wires on joining in parallel the resultant resistance is 6/5 ohms. One of the wire breaks, the effective resistance is 2 ohms. The resistance of the broken wire is

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QUESTION: 48

When a wire of resistance R is stretched and its radius becomes r/2, then the new resistance will be

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QUESTION: 49

Two resistances 4 Ω and 6 Ω are in series and another 10Ω resistance is in parallel to the series combination. The resultant resistance is

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QUESTION: 50

Which of the following materials is the best conductor of electricity?

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QUESTION: 51

Particle nature is shown by

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QUESTION: 52

A transformer is used to light a 100W and 110V lamp from a 220V mains. If the main current is 0.5A, the efficiency of the transformer is approximately

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QUESTION: 53

A coil carrying electric current is placed in uniform magnetic field, then

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The coil carrying current held in a magnetic field experiences a torque.

QUESTION: 54

When the no. of turns in a coil is triplled, without any change in the length of coil, its self-inductance becomes

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QUESTION: 55

Which rays are not the portion of electro magnetic spectrum?

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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

n small drops of same size are charged to V volt each. They coalesce to form a bigger drop. The potential of the bigger drop is

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QUESTION: 58

A spherical shell of radius a with charge Q is expanded to radius b. The work done by the electric force in the process is

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QUESTION: 59

A charge q is located at the centre of a cube. The electric flux through any face is

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QUESTION: 60

A body of mass 1g and carrying a charge 10-8, C passes from two points P and Q. P and Q are at electric potentials 600V and 0V respectively. The velocity of the body at Q is 20 c m s-1 . Its velocity in m s-1 at P is

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QUESTION: 61

The electrical conductivity of the earth's atmosphere increases with altitude due to

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QUESTION: 62

A current carrying coil when freely suspended will allign itself

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QUESTION: 63

The first atomic reactor was constructed by

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QUESTION: 64

In two isotopes of an element the number of protons in their nuclei will be --- and number of neutrons in their nuclei will be

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QUESTION: 65

Which one of the following is a possible nuclear reaction?

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QUESTION: 66

When the photons of energy hv fall on a photo-sensitive surface (work function hv₀) electrons are emitted from the metallic surface. This is known as photoelectric effect. The electron coming out of the surface have a kinetic energy. Then it is possible to state that

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QUESTION: 67

The threshold wavelength is 2000 Å. The work function is

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QUESTION: 68

A symmetric double convex lens is cut in two equal parts by a plane perpendicular to the principal axis. It the power of the original lens is 4D, the power of a cut lens will be

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QUESTION: 69

The difference in the number of wavelengths, when yellow light propagates through air and vacuum columns of the same thickness, is one. The thickness of the air column is
(Refractive index of air μa = 1.0003 ; Wavelength of yellow light in vacuum 6000 Å )

Solution:

Let λa and λ be the wavelengths of yellow light in air and vacuum respectively and va and c be their respective speeds in air and vacuum.
Since the frequency of light is the same in both media, we have



Now, if t is the thickness of each columm, then the number of wavelengths in the two media are

Given μ a = 1.0003 and λ = 6000 Å = 6000 x 10 − 8 cm. Using these values in (3), we have

QUESTION: 70

When Boron is added as impurity to silicon, the resulting material is -------- semiconductor.

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QUESTION: 71

In the middle of the depletion layer of a reverse-biased p-n junction, the

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QUESTION: 72

In a p - type semiconductor, the electrical conduction is due to

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QUESTION: 73

At OK temperature, a p-type semiconductor

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QUESTION: 74

The band gap in germanium and silicon in eV respectively is

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QUESTION: 75

When the electrical conductivity of a semiconductor is due to the breaking of its covalent bonds, then the semiconductor is said to be

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QUESTION: 76

A example of a semiconductor is

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QUESTION: 77

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: 78

A wave front is the locus of all the particles of a medium, which are vibrating in the

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QUESTION: 79

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: 80

Two slits, 4 mm apart, are illuminated by light of wavelength 6000 Å. What will be the fringe width on a screen placed 2 m from the slits?

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QUESTION: 81

Which of the following processes is employed to convert alkyl halide into alcohol?

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QUESTION: 82

In which reaction aromatic aldehyde is treated with acid anhydride in presence of corresponding salt of the acid to give unsaturated aromatic acid?

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QUESTION: 83

Which of the following will give Cannizzaro reaction?

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QUESTION: 84

The functional group present in 3-methyl butanal is

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QUESTION: 85

Methane is formed when

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QUESTION: 86

Assume that the nucleus of the fluorine atom is a sphere of radius 5 x 10-13 cm. What is the density of matter in the nucleus?

Solution:

The radius of a fluorine nucleus is x 10-13 cm
The mass of a F nucleus = 19/6 x 1023 g = 3.2 x 10-26 kg
The volume of a F nucleus = 4 3 πr3
= 4/3 x π x (5 x 10-13)3 cm3
= 5.2 x 10-37 cm3
Density = mass/volume
= 3.2 x 10 -26 k g /5.2 x 10-37 c m3
= 6.1 x 1010 kg cm-3 = 6.1 x 1013 g cm-3

QUESTION: 87

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

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QUESTION: 88

The three fundamental quantities are

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QUESTION: 89

An antibody is a/an

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QUESTION: 90

Which of the following is not a function of proteins?

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QUESTION: 91

The metal present in vitamin B₁₂ is

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QUESTION: 92

Amides may be converted into amines by a reaction named after

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QUESTION: 93

From the following values of dissociation constants of four acids which value represents the strongest acid ?

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QUESTION: 94

Which of the following gives blood red colour with KCNS ?

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QUESTION: 95

Which of the following compounds on boiling with KMnO₄ and the subsequent acidification will not give benzoic acid ?

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QUESTION: 96

A vessel at equilibrium, contains SO₃, SO₂ and O₂. Now some helium gas is added, so that total pressure increases while temperature and volume remain constant. According to Le-Chatelier's principle, the dissociation of SO₃

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QUESTION: 97

If an endothermic reaction is non-spontaneous at freezing point of water and becomes feasible at its boiling point, then

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QUESTION: 98

Which of the following is not chiral ?

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QUESTION: 99

The heats of dissociation (k.cals/mole) of methane and ethane are 360 and 620 respectively. From these, C - C bond energy (k.cals/mole) in ethane can be evaluated as

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QUESTION: 100

Which one of the following will not show geometrical isomerism?

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QUESTION: 101

Work done during the compression of a gas from a volume of 6dm3 to 4 dm3 against a constant external pressure of 3 atm is (1atm-litre=101.32J)

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QUESTION: 102

Which of the following could act as a propellant for rockets?

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QUESTION: 103

The cell potential of the following cell at 25 oC (in volts) is

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QUESTION: 104

Which of the following metal does not form polynuclear carbonyl?

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QUESTION: 105

Compound A has a molecular formula C₇H₇NO on treatment with Br₂/KOH, A gives an amine B which respond to carbylamine test. B on diazotisation and coupling with phenol give an azo dye. A can be

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QUESTION: 106

Ethyl isocyanide on acidic hydrolysis generates

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QUESTION: 107

A smuggler could not carry gold by chemically depositing iron on the gold surface since

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QUESTION: 108

Calculate the amount of change flowing in 2 minute in a wire of resistance 10 Ω when a potential difference of 20 V is applied

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QUESTION: 109

Which is most explosive?

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QUESTION: 110

In the preparation of sodium carbonate (Na₂CO₃), which of the following is used as raw material?

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QUESTION: 111

Which one of the following indicates the value of the gas constant R ?

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QUESTION: 112

Glass is a

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QUESTION: 113

The three important oxidation states of phosphorus are

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QUESTION: 114

When ether is exposed in air for sometime, an explosive substance produced is

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QUESTION: 115

xMnO₄- + yH₂SO₄ → 2Mn2+ + 5H₂O +9O₂ + ze- In this reaction values of x, y and z are

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QUESTION: 116

Which of the following has maximum Frenkel defect?

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QUESTION: 117

In the extraction of iron, slag is produced which is

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QUESTION: 118

(2R, 3R)- 2, 3-butanediol is:

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QUESTION: 119

A transition metal x has configuration [Ar]3d4 in its +3 oxidation state. Its atomic number is

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QUESTION: 120

Cod Liver oil is

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QUESTION: 121

Find the synonym of SUSTAIN

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QUESTION: 122

Fill in the blank with appropriate word.
Our flight was.........from Jaipur to Agra airport.

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QUESTION: 123

Find the antonym of COVERT

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QUESTION: 124

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

To follow the primrose path

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QUESTION: 125

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

My mother asked me when WOULD I have a glass of milk.

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