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VITEEE PCBE Mock Test - 15

125 Questions MCQ Test VITEEE: Subject Wise and Full Length MOCK Tests | VITEEE PCBE Mock Test - 15

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This mock test of VITEEE PCBE Mock Test - 15 for JEE helps you for every JEE entrance exam. This contains 125 Multiple Choice Questions for JEE VITEEE PCBE Mock Test - 15 (mcq) to study with solutions a complete question bank. The solved questions answers in this VITEEE PCBE Mock Test - 15 quiz give you a good mix of easy questions and tough questions. JEE students definitely take this VITEEE PCBE Mock Test - 15 exercise for a better result in the exam. You can find other VITEEE PCBE Mock Test - 15 extra questions, long questions & short questions for JEE on EduRev as well by searching above.

QUESTION: 1

Numerous vascular bundles occur scattered in the ground tissue of

A.
Monocot stem
B.
Monocot root
C.
Dicot stem
D.
Dicot root

Solution:

QUESTION: 2

Bee dances occur because of

A.
courtship
B.
communication
C.
recreation
D.
instinct

Solution:

QUESTION: 3

The drug Santonin is obtained from the flowers of

A.
Aloe vera
B.
Colchicum autumnale
C.
Artemisia cina
D.
Atropa belladona

Solution:

QUESTION: 4

Radioactive entities are used to trace certain macromolecules. If radioactive aminoacid is used which organelle it will be traced in

A.
mitochondria
B.
chloroplast
C.
polysomes
D.
nucleolus

Solution:

QUESTION: 5

Hardness to the cell wall is provided by

A.
lignin
B.
cutin
C.
pectin
D.
suberin

Solution:

QUESTION: 6

Who discovered the cell (actually the cell wall) in section of cork ?

A.
Schwann
B.
Schleiden
C.
Leeuwenhock
D.
Robert Hooke

Solution:

QUESTION: 7

Joining of repeating units to form a macromolecules is called

A.
Polymerisation
B.
Aggregation
C.
Polymorphism
D.
Condensation

Solution:

QUESTION: 8

Which of the following would occur as a result of the oval opening in the heart remaining open after birth?

A.
Blood pressure in the lungs would increase
B.
Impulses from the sinoatrial (SA) node would stop
C.
Blood in the right atrium would mix with blood in the left atrium
D.
A greater amount of blood would flow into the pulmonary system

Solution:

QUESTION: 9

Which one is inverted pyramid?

A.
Pyramid of biomass in grassland
B.
Pyramid of biomass in pond ecosystem
C.
Pyramid of numbers in grassland ecosystem
D.
Pyramid of energy in a pond ecosystem

Solution:

QUESTION: 10

Which one is vestigial in humans

A.
Pinna muscles
B.
Eye lids
C.
Canine teeth
D.
Nails

Solution:

QUESTION: 11

Dinsaurs were dominant during

A.
Devonian
B.
Pleistocene
C.
Permian
D.
Jurassic

Solution:

QUESTION: 12

A vestigial organ in man is

A.
Mammary gland
B.
Pelvic girdle
C.
Vermiform appendix
D.
Sebaceous glands

Solution:

QUESTION: 13

Which of the following causes point mutation

A.
Deletion
B.
Inversion
C.
Transition
D.
All the above

Solution:

QUESTION: 14

Flow of information during translation is

A.
mRNA → Protein
B.
DNA → mRNA
C.
mRNA → DNA
D.
DNA → Protein

Solution:

QUESTION: 15

Which of the following pairs is correctly matched with regard to the codon and the amino acid coded by it ?

A.
UUA - valine
B.
AAA - lysine
C.
AUG - cysteine
D.
CCC - alanine

Solution:

QUESTION: 16

When one gene hides the effect of another gene, the interaction factor is known as :

A.
epistatic factor
B.
duplicate factor
C.
complementary factor
D.
supplementary factor

Solution:

QUESTION: 17

In a cross between a pure tall pea plant with green pos and a pure short plant with yellow pod, how many short plants out of 16 you would expect in F₂ generation?

A.
9
B.
3
C.
1
D.
4

Solution:

QUESTION: 18

In sex-linked traits the males are

A.
Less prone to defect because Y-chromosome is dominant
B.
Less prone to defect because there is only one allele
C.
More prone to defect because they are hemizygous
D.
Less prone to defect because they are hemizygous

Solution:

QUESTION: 19

Huntington's chorea is characterised by

A.
Incongruant muscle movement
B.
Disordered muscle movement and mental deterioration
C.
Weak eye sight and hearing power
D.
Inability to speak

Solution:

QUESTION: 20

Suspension of attenuated pathogen that stimulates antibody formation is

A.
Antitoxin
B.
Antibiotic
C.
Vaccine
D.
Sera

Solution:

QUESTION: 21

Immune deficiency syndrome could develop due to

A.
Defective liver
B.
Defective thymus
C.
AIDS virus
D.
Weak immune system

Solution:

QUESTION: 22

AIDS spreads due to

A.
Homosexuality
B.
Immoral way of life
C.
Infected needles and syringes
D.
All the above

Solution:

QUESTION: 23

Which of the following is a wrong statement?

A.
Rose has adnate stipule
B.
In Ficus, stipules are modified into scale buds
C.
Solanum has ochreate stipules
D.
In lily the axillary bud is modified into tendril

Solution:

QUESTION: 24

Inflorescence of family compositae is

A.
Capitulum
B.
Spadix
C.
Catkin
D.
Raceme

Solution:

QUESTION: 25

The prickly pear plant which is botanically named as Opuntia ia an excellent example of

A.
Phyllode
B.
Cladode
C.
Cladophyll
D.
None of the above

Solution:

QUESTION: 26

Algae often float on surface of water during day but sink down during night due to

A.
Evolution and trapping of oxygen bubbles during the day in their photosynthesis
B.
Become light as they consume most of their food in the night
C.
Warming action of sun during the day
D.
Release of absorbed air by warming of water

Solution:

QUESTION: 27

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

A.
Mycotoxin
B.
Phytoalexin
C.
Pathotoxin
D.
Vivotoxin

Solution:

QUESTION: 28

Biogas is produced by anaerobic fermentation of dung and other forms of plant and animal wastes. It consists of

A.
50-70% Methane, 30-40% CO2 and traces of hydrogen, nitrogen and H2S
B.
30-40% methane, 50-70% CO2 and traces of nitrogen, hydrogen and H2S
C.
10-20% methane and H2S, 80-90% CO2 and traces of nitrogen, hydrogen
D.
80-90% methane, 10-20% CO2 and baces of nitrogen, hydrgen and H2S

Solution:

QUESTION: 29

Which one is living and non-nucleated at maturity ?

A.
Sieve tubes
B.
Companion cells
C.
Collenchyma
D.
Parenchyma

Solution:

QUESTION: 30

Lead concentration of blood is considered alarming at

A.
4-6 μm/100 ml
B.
10 μg/100 ml
C.
20 μg/100 ml
D.
30 μg/100 ml

Solution:

QUESTION: 31

Nitrogen oxides formed during emission from automobiles and power plants are a source of fine air partilces which lead to

A.
Dry acid deposition
B.
Photochemical smog
C.
Wet acid deposition
D.
Industrial smog

Solution:

QUESTION: 32

NEERI is at

A.
New Delhi
B.
Nagpur
C.
Kolkata
D.
Chennai

Solution:

QUESTION: 33

Trypanosoma brucei causes :

A.
kala-azar
B.
Dysentery
C.
Nagana disease of animals
D.
Sleeping sickness

Solution:

QUESTION: 34

The site of testosterone production in the cytoplasm of an interstitial cell is the

A.
Lysosome
B.
Mitochondrion
C.
Rough endoplasmic reticulum
D.
Smooth endoplasmic reticulum

Solution:

QUESTION: 35

More energy is produced from 1 g of

A.
vitamin
B.
sugar
C.
protein
D.
fats

Solution:

QUESTION: 36

Most important theory of genral biology was proposed by

A.
Mendel and Morgan
B.
Beadle and Tatum
C.
Watson and Crick
D.
Darwin and Wallace

Solution:

QUESTION: 37

"Human population grows in geometric ratio while food materials increase in arithemetic proportion." It is a statement from

A.
Darwin
B.
Bateson
C.
Amritya Sen
D.
Malthus

Solution:

QUESTION: 38

Darwin's theory of Natural Selection fails to explain

A.
Role of variations
B.
Survival of the fittest
C.
Arrival of the fittest
D.
Strugle of the existance

Solution:

QUESTION: 39

Production of urea occurs in the

A.
Skin
B.
Liver
C.
Lungs
D.
Kidneys.

Solution:

QUESTION: 40

Aldosterone is secreted by the

A.
testes
B.
Nephron
C.
Adrenal cortex
D.
Posterior pituitary

Solution:

QUESTION: 41

A stepdown transformer is connected to main supply 200 V to operate a 6V, 30W bulb. The current in primary is

A.
3 amp
B.
1.5 amp
C.
0.3 amp
D.
0.15 amp

Solution:

QUESTION: 42

The closest distance of approach of an α - particle travelling with a velocity 'V' to a certain nucleus is 'x'. The distance of closest approach of α - particle travelling with a velocity 3V to the same nucleus is

A.
3x
B.
x/3
C.
9x
D.
x/9

Solution:

QUESTION: 43

Moseley's law states that

A.
√v = a (z − b)
B.
v = a²(z − b)
C.
v = √ a(z − b)
D.
√v = a(z − b)²

Solution:

The frequency of characteristic X-ray spectral line is directly proportional to the square of atomic number of target element.
⇒ v ∝ Z² i . e . √v ∝ Z
o r √v = a (z − b )
Here a is constant of proportionality b is screening constant.

QUESTION: 44

An air capacitor of capacity C = 10μ F is connected to a constant voltage battery of 12 volt. Now the space between the plates is filled with a liquid of dielectric constant 5. The charge that flows now from battery to the capacitor is

A.
120 μ C
B.
600 μ C
C.
480 μ C
D.
24 μ C

Solution:

C = 10 μ F
Charge in capacitor q = CV
= 10 x 12
= 120 μ C
On keeping liquid of dielectric constant5, capacity will becomes of 5 time.
∴ Charge q = 5 x 120
= 600 μ C

QUESTION: 45

In connection with chemical effect of current, Faraday constant is equal to

A.
electrochemical equivalent/chemical equivalent
B.
grams equivalent/electrochemical equivalent
C.
electrochemical equivalent/grams equivalent
D.
chemical equivalent/electrochemical equivalent

Solution:

E ∝ z or E = Fz or F = E/z
Where E = chemical equivalent
z = electrochemical equivalent

QUESTION: 46

In short wave communication waves of which of the following frequencies will be reflected back by the ionospheric layer having electron density 10¹¹ per m^-3?

A.
2 MHz
B.
10 MHz
C.
12 MHz
D.
18 MHz

Solution:

QUESTION: 47

An electric motor operates on a d.c. source of e.m.f. V and internal resistance R. The power output of the source is maximum when the current drawn by the motor is

A.
V/R
B.
V/2R
C.
3V/2R
D.
None of the above

Solution:

QUESTION: 48

Which of the following does not obey the ohm's law?

A.
electrolytes
B.
discharge tube
C.
vacuum tube
D.
all of these

Solution:

QUESTION: 49

The electrical resistance of a mercury column in a cylindrical container is R. When the same mercury is poured into another cylindrical container twice the radius of cross-section, the resistance of mercury column now is

A.
R/2
B.
R/4
C.
R/8
D.
R/16

Solution:

QUESTION: 50

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

A.
Twice of the second
B.
Half of the second
C.
Equal to the second
D.
Four times of the second

Solution:

QUESTION: 51

Uncertainty in position of the electron is of the order of de-Broglie wavelength. Making use of Heisenberg's uncertainty principle, it will be found that uncertainty in velocity ν is of the order of

A.
1 ν
B.
2 ν
C.
ν/2π
D.
2πν

Solution:

QUESTION: 52

In a D.C. motor induced e.m.f will be maximum

A.
When motor starts rotating
B.
When motor takes maximum speed
C.
When speed of motor gradually increases
D.
When motor is switched off

Solution:

QUESTION: 53

In a pure inductive circuit with a.c. source, the current lags behind e.m.f. by

A.
π
B.
2π
C.
π/2
D.
π/4

Solution:

QUESTION: 54

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

A.
same
B.
three times
C.
six times
D.
nine times

Solution:

QUESTION: 55

The electromagnetic waves travel with a velocity

A.
equal to the velocity of light
B.
equal to velocity of sound
C.
less than velocity of light
D.
none of these

Solution:

QUESTION: 56

A point charge q is placed at a distance a/2 directly above the centre of a square of side a. The electric flux through the square assuming it to be one face of the cube is

A.
q/∈₀
B.
q/6 ∈₀
C.
q/4 ∈₀
D.
none of these

Solution:

QUESTION: 57

Equal charges are given to two conducting spheres of different radii. The potential will

A.
be more on the smaller sphere
B.
be more on the bigger sphere
C.
be equal on both the sphere
D.
depends on the nature of the materials of the sphere

Solution:

QUESTION: 58

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

A.
9 x 10^-3 J
B.
zero
C.
9 x 10^-3 eV
D.
1 J

Solution:

QUESTION: 59

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

A.
αr²/3 ε₀
B.
αr²/34ε₀
C.
αr³/4 ε₀
D.
αr³/3 ε₀

Solution:

QUESTION: 60

Two capacitors of capacitances 3 μF and 6 μF are charged to a potential of 12 V each. They are now connected to each other, with the positive plate of each joined to the negative plate of the other. The potential difference across each capacitor will be

A.
6 V
B.
4 V
C.
3 V
D.
zero

Solution:

QUESTION: 61

Figure shows two large cylindrical shells having uniform linear charge densities + λ and - λ . Radius of inner aylinder is 'a' and that of outer cylinder is 'b'. A charged particle of mass m , charge q revolves in a circle of radius r. Then its speed 'V' is:
[Neglect gravity and assume the radii of both cylinders to be very small in comparison to their length]

Solution:

QUESTION: 62

A current of 2 ampere flows in a long, straight wire of radius 2 mm. The intensity of magnetic field at the axis of the wire is

A.
μ₀/π x 10³ telsa
B.
μ₀/2π x 10³telsa
C.
2μ₀/π x 10³ telsa
D.
zero

Solution:

QUESTION: 63

In a radioactive disintegration, the ratio of initial number of atoms to the number of atoms present at an instant of time equal to its mean life is

A.
1/e²
B.
1/e
C.
e
D.
e²

Solution:

QUESTION: 64

A heavy nucleus at rest breaks into two fragments which fly off with velocities 8:1. The ratio of radii of the fragments is

A.
1:2
B.
1:4
C.
4:1
D.
2:1

Solution:

QUESTION: 65

A nuclear reactor has a power of 16 Kw. If the energy per fission is 200 MeV, the number of fissions per second is

A.
5 x 10¹⁶
B.
5 x 10¹⁷
C.
5 x 10¹⁴
D.
5 x 10¹⁵

Solution:

QUESTION: 66

The slope of frequency of incident light and stopping potential for a given surface will be

A.
h
B.
h/e
C.
eh
D.
e

Solution:

QUESTION: 67

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

A.
0.58 eV
B.
2.48 eV
C.
1.24 eV
D.
1.16 eV

Solution:

QUESTION: 68

A person using a lens as a simple microscope sees an

A.
Inverted virtual image
B.
Inverted real magnified image
C.
Upright virtual image
D.
Upright real magnified image

Solution:

QUESTION: 69

If convex lens of focal length 80 cm and a concave lens of focal length 50 cm are combined together, what will be their resulting power?

A.
+6.5 D
B.
-6.5 D
C.
-0.75 D
D.
+7.5 D

Solution:

QUESTION: 70

When n - p - n transistor is used as an amplifier.

A.
Electrons move from base to collector
B.
Holes move from emitter to base
C.
Holes move from collector to base
D.
Holes move from base to emitter

Solution:

QUESTION: 71

If the two ends p and n of a p-n diode junction are joined by a wire

A.
there will not be a steady current in the circuit
B.
there will be steady current from n-side to p-side
C.
there will be steady current from p-side to n-side
D.
there will not be a current depending upon the resistance to the connecting wire

Solution:

QUESTION: 72

When the forward bias voltage increases what happens to the potential barrier.

A.
Increases
B.
Decreases
C.
Remains the same
D.
Depends on the metal

Solution:

QUESTION: 73

In p-type semiconductor, majority current carriers are

A.
holes
B.
electrons
C.
negative ions
D.
both '1' and '2'

Solution:

QUESTION: 74

A P-type semiconductor can be obtained by adding

A.
Arsenic to pure silicon
B.
Gallium to pure silicon
C.
Antimony to pure germanium
D.
Phosphorous to pure germanium

Solution:

QUESTION: 75

In p-type semiconductor the majority charge carriers are

A.
electrons
B.
holes
C.
neutrons
D.
protons

Solution:

QUESTION: 76

Electronic configuration of germanium is 2, 8, 18 and 4. To make it extrinsic semiconductor small quantity of antinomy is added

A.
The material obtained will be n-type germanium in which electrons and holes are equal in number
B.
The material obtained will be p-type germanium
C.
The material obtained will be n-type germanium which has more electrons then holes at room temperature
D.
The material obtained will be n-type germanium which has less electrons than holes at room temperature

Solution:

QUESTION: 77

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

A.
tan^-1(1.62)
B.
tan^-1(1/1.62)
C.
tan^-1(1.33)
D.
tan^-1(1/1.33)

Solution:

QUESTION: 78

An astronout is looking on earth's surface from a sapce shuttle at an altitude of 500 km. Assuming that the astronaut's pupils' diameter is 5 mm and the wavelength of visible light is 500 nm, the astronaut will be able to resolve linear objects of the size of about

A.
0.5 m
B.
5 m
C.
50 m
D.
500 m

Solution:

QUESTION: 79

Which of the following phenomena establish the wave nature of light?

A.
Interference and diffraction
B.
Interference and Polarisation
C.
Diffraction and Polarization
D.
Interference, diffraction and Polarisation

Solution:

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?

A.
0.12 mm
B.
0.3 mm
C.
3.0 mm
D.
4.0 mm

Solution:

QUESTION: 81

When 3,3-Dimethyl-2-butanol is heated with H₂SO₄, the major product obtained is

A.
3, 3-Dimethyl-1-butene
B.
2, 3-Dimethyl-2-butene
C.
2, 3-Dimethyl-1-butene
D.
cis and trans-isomers of (B)

Solution:

QUESTION: 82

Reduction of aldehyde with hydroiodic acid gives

A.
1^oAlcohol
B.
2^oAlcohol
C.
alkane
D.
alkene

Solution:

QUESTION: 83

Schiff's reagent is

A.
Magenta solution decolourised with sulphurous acid
B.
Magenta solution decolourised with clorine
C.
Ammonical cobalt chloride solution
D.
Ammonical manganese sulphate solution

Solution:

QUESTION: 84

In aldehydes and ketones, carbon of the carbonyl group is

A.
sp³-hybridized
B.
sp²-hybridized
C.
sp-hybridized
D.
unhybridized

Solution:

QUESTION: 85

An alkane C₇H₁₆ is produced by the reaction of Lithium di (3-pentyl) cuperate with ethyl bromide. The structural formula of product is

A.
3-Methylhexane
B.
2-Ethylpentane
C.
3-Ethylpentane
D.
n-Heptane

Solution:

QUESTION: 86

1-Butene may be converted to butane by reaction with

A.
Zn-HCl
B.
Sn-HCl
C.
Zn-Hg
D.
Pd/H₂

Solution:

QUESTION: 87

Complete combustion of 0.858 g of compound X gives 2.63 g of CO₂ and 1.28 g of H₂O. The lowest molecular mass X can have

A.
43 g
B.
86 g
C.
129 g
D.
172 g

Solution:

QUESTION: 88

Which law directly explains the law of conservation of mass?

A.
Dalton's law
B.
Avogadro's law
C.
Beizlius law
D.
Hund's rule

Solution:

QUESTION: 89

Enzymes

A.
have optimum acitivity at body temperature
B.
consists of nucleic acids
C.
carbohydrates
D.
have all these properties

Solution:

QUESTION: 90

Element found in plant systems which forms an important constituent of photosynthesis is

A.
iron
B.
copper
C.
magnesium
D.
sodium

Solution:

QUESTION: 91

Alpha-Tocopherol is found in

A.
vegetable oils
B.
lemon
C.
peanuts
D.
tomatoes

Solution:

QUESTION: 92

Methyl acetate will be obtained by reacting CH₃OH with

A.
CH₃COOH
B.
CH₃COCl
C.
(CH₃CO)₂O
D.
All the three above

Solution:

QUESTION: 93

Hydrolytic reaction of fats by caustic soda is known as

A.
Acetylation
B.
Carboxylation
C.
Esterification
D.
Saponification

Solution:

QUESTION: 94

Sulphonation of benzoic acid produces mainly

A.
o-Sulphobenzoic acid
B.
m-Sulphobenzoic acid
C.
p-Sulphobenzoic acid
D.
o- and p-Sulphobenzoic acid

Solution:

QUESTION: 95

A and B are gaseous substances which react reversibly to give two gaseous substances C and D,accompanied by the liberation of heat.When the reaction reaches equilibrium,it is observed that K_p = K_c.The equilibrium cannot be disturbed by

A.
Adding A
B.
Adding D
C.
Raising the temperature
D.
Increasing the pressure

Solution:

QUESTION: 96

The facor which changes equilibrium constant of the reaction A₂(g) + B₂(g) → 2AB(g) is

A.
Total pressure
B.
Amounts of A₂ and B₂
C.
Temperature
D.
Catalyst

Solution:

QUESTION: 97

A particular reaction has a negative value for the free energy change. Then at ordinary temperature

A.
It has a large -ve value for the entropy change
B.
It has a large +ve value for enthalpy change
C.
It has small +ve value for enthalpy change
D.
It has a +ve value for the entropy change and a -ve value for the enthalpy change

Solution:

QUESTION: 98

The difference between ΔH and ΔE for the combustion of methane at 27^oC will be (in J mol^-1)

A.
8.314 x 27 x (-3)
B.
8.314 x 300 x (-3)
C.
8.314 x (300) x (-2)
D.
8.314 x 300 x 1

Solution:

CH₄(g) + 2O₂ → CO₂(g) + 2H₂O(l)
Δn = 1 - 3 = (-2)
∴ ΔH - ΔE = Δn_g RT = (-2) (8.314) (300)

QUESTION: 99

Which of the following compounds is aspirin?

A.
Methyl salicylate
B.
Acetyl salicylic acid
C.
Phenyl salicylate
D.
Salicylic acid

Solution:

QUESTION: 100

Which of the following is an isomers of propanal ?

A.
acetone
B.
propane
C.
propanol
D.
propionic acid

Solution:

QUESTION: 101

A similarity between optical and geometrical isomerism is that

A.
Each gives equal umber of isomers for a given compound
B.
If in a compound one is present then so is the other
C.
Both are included in stereoisomerism
D.
They have no similarity

Solution:

QUESTION: 102

(NH₄)₂SO₄.FeSO₄.6H₂O is

A.
Mohr's salt
B.
Blue vitriol
C.
Alum
D.
Simple salt

Solution:

QUESTION: 103

Alkyl cyanides are

A.
Less polar than alkyl isocyanides
B.
More polar than alkyl isocyanides
C.
Equally polar than alkyl isocyanides
D.
None of these

Solution:

QUESTION: 104

Hinsberg reagent is

A.
C₆H₅SO₃H
B.
C₂H₅NO
C.
C₆H₅SO₂Cl
D.
C₆H₅N₂Cl

Solution:

QUESTION: 105

The art of electroplating was given by

A.
Faraday
B.
Edison
C.
Thomas Graham
D.
Brugan

Solution:

QUESTION: 106

An electrochemical cell reaction is : Pt, H₂(1atm) ∣ HCl(0.1M)∣∣ CH₃COOH (0.1M)∣ H₂ (1atm), Pt. The e.m.f. of this cell will not be zero, because

A.
temperature is constant
B.
e.m.f. depends upon molarities of acids used
C.
acids used in two compartments are different
D.
pH of 0.1 M HCl and 0.1 M CH₃COOH is not same

Solution:

QUESTION: 107

In the electrochemical cell Pt, H₂ (g) 1 atm ∕ H⁺ I M ∕ Cu²⁺ (1M) ∕ Cu(s). Which one of the following statements is true?

A.
H₂ is cathode, Cu is anode
B.
Oxidation Occurs at Cu electrode
C.
Reduction Occurs at H₂ electrode
D.
H₂ is anode, Cu is cathode

Solution:

QUESTION: 108

The ether that undergoes electrophilic substitution reactions is

A.
CH₃OC₂H₅
B.
C₆H₅OCH₃
C.
CH₃OCH₃
D.
C₂H₅OC₂H₅

Solution:

QUESTION: 109

Chromium is obtained by reducing purified chromite ore with

A.
Red hot coke
B.
Gaseous hydrogen
C.
Aluminium powder
D.
Carbon monoxides

Solution:

QUESTION: 110

For an ideal gas, number of moles per litre in terms of its pressure P, gas contant R and temperature T is

A.
PT/R
B.
PRT
C.
P/RT
D.
RT/P

Solution:

QUESTION: 111

The element that does not form a monoxide is

A.
Lead
B.
Tin
C.
Germanium
D.
Silicon

Solution:

QUESTION: 112

The electronic configuration of an element is 1s₂2s₂2p₆3s₂3p₆3d₁₀4s₂4p₃. Its properties would be similar to which of the following elements?

A.
Boron
B.
Nitrogen
C.
Oxygen
D.
Chlorine

Solution:

QUESTION: 113

Which of the following oxides of Nitrogen is anhydride of HNO₃

A.
N₂O₃
B.
N₂O₄
C.
N₂O₅
D.
N₂O

Solution:

QUESTION: 114

In which of the following complexes, oxidation state of metal is zero ?

A.
[Pt(NH₃)₂ Cl₂]
B.
[Cr(CO)₆]
C.
[Cr(NH₃)₃ Cl₃]
D.
[Cr(en)₂ Cl₂]

Solution:

QUESTION: 115

Which of the following describes the hexagonal close packed arrangement of spheres?

A.
ABCABA
B.
ABC ABC
C.
ABABA
D.
ABBABB

Solution:

QUESTION: 116

Which forms meso form on reaction with alkaline KMnO₄?

Solution:

QUESTION: 117

Which of the following is true about a catalyst?

A.
it initiates reaction
B.
it changes equilibrium point
C.
it accelerates the rate of reaction
D.
it increases average kinetic energy

Solution:

QUESTION: 118

Mercury is the only metal which is liquid at 0^oC. This is due to its

A.
Very high ionisation energy and weak metallic bond
B.
Low ionisation potential
C.
High atomic weight
D.
High vapour pressure

Solution:

QUESTION: 119

The nature of an aqueous solution of FeCl₃ is

A.
Acidic
B.
Basic
C.
Amphoteric
D.
Neutral

Solution:

QUESTION: 120

The standard enthalpy of decomposition of N₂O₄ to NO₂ is 58.04 KJ and standard entropy of this reaction is 176.7 J-K^-1. The standard free energy change for this reaction at 25^oC, is

A.
-539 KJ
B.
539 KJ
C.
-5.39 KJ
D.
5.39 KJ

Solution:

QUESTION: 121

Find the Antonym of PRECIPITATE

A.
pull
B.
push
C.
defer
D.
create

Solution:

QUESTION: 122

Fill in the blank with appropriate word.
Some regions of our country still remain........to the average man.

A.
impenetrable
B.
impermeable
C.
inaccessible
D.
impossible

Solution:

QUESTION: 123

Find the synonym of BROWSE

A.
heal
B.
decieve
C.
examine
D.
strike

Solution:

QUESTION: 124

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

Many people CALLED ON the minister when he was ill.

A.
helped
B.
surrounded
C.
visited
D.
criticised

Solution:

QUESTION: 125

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

He is not IN THE GOOD BOOKS of his master.

A.
in the good book
B.
into the good books
C.
in the better books
D.
No improvement

Solution:

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Numerous vascular bundles occur scattered in the ground tissue of

Monocot stem

Monocot root

Dicot stem

Dicot root

Bee dances occur because of

courtship

communication

recreation

instinct

The drug Santonin is obtained from the flowers of

Aloe vera

Colchicum autumnale

Artemisia cina

Atropa belladona

mitochondria

chloroplast

polysomes

nucleolus

lignin

cutin

pectin

suberin

Schwann

Schleiden

Leeuwenhock

Robert Hooke

Polymerisation

Aggregation

Polymorphism

Condensation

Blood pressure in the lungs would increase

Impulses from the sinoatrial (SA) node would stop

Blood in the right atrium would mix with blood in the left atrium

A greater amount of blood would flow into the pulmonary system

Pyramid of biomass in grassland

Pyramid of biomass in pond ecosystem

Pyramid of numbers in grassland ecosystem

Pyramid of energy in a pond ecosystem

Pinna muscles

Eye lids

Canine teeth

Nails

Devonian

Pleistocene

Permian

Jurassic

Mammary gland

Pelvic girdle

Vermiform appendix

Sebaceous glands

Deletion

Inversion

Transition

All the above

mRNA → Protein

DNA → mRNA

mRNA → DNA

DNA → Protein

UUA - valine

AAA - lysine

AUG - cysteine

CCC - alanine

epistatic factor

duplicate factor

complementary factor

supplementary factor

9

3

1

4

Less prone to defect because Y-chromosome is dominant

Less prone to defect because there is only one allele

More prone to defect because they are hemizygous

Less prone to defect because they are hemizygous

Incongruant muscle movement

Disordered muscle movement and mental deterioration

Weak eye sight and hearing power