MDCAT Mock Test 14

Created by Ali Durrani

MDCAT

MDCAT Mock Test 14

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1 / 200

Category: Biology Ch 1 Class 11

Which one is not correct for a productive theory?

It is predictive

It has explanatory power

It discourage s suggestion of different hypotheses

It discourages suggestion of different hypotheses

2 / 200

Category: Biology Ch 1 Class 11

A series of hypothesis supported by the results of many tests is called

Scientific law

Theory

Deduction

3 / 200

Category: Biology Ch 1 Class 11

Biological sciences have a set methodology and it is based on

Experimental inquiry

Esthetic preference

Philosophical ideas

Imaginations

4 / 200

Category: Biology Ch 1 Class 12

Sperms of liverworts, mosses, ferns move towards archegonia, in response to uncleic acid released by the ovum. This is an example of:

Chemotropic movement

Chemotactic movement.

Chemosastic movement

. Haptonastic movement.

5 / 200

Category: Biology Ch 1 Class 12

Among the followings which is the most longest supportive cell?

Tracheids

Sclereids

Trachea

Collenchyma cells

6 / 200

Category: Biology Ch 1 Class 12

Rapid movement of leaves of mimosa on touching is an example of :

Turgor movement

Nastic movement

Tropic movements.

Growth movement

7 / 200

Category: Biology Ch 1 Class 12

Which of the following structure in plant’s body is called excretophores?

Stem

Leaves

Flowers

Roots

8 / 200

Category: Biology Ch 1 Class 12

Terrestrial animals like kangaroo rat survive even without drinking water since

They don't require water for their metabolic process

They can retain excessive water in their body during raining season.

They feed on carbohydrate rich seeds which can provide them with metabolic water

They are anhydrobiotic organisms

9 / 200

Category: Biology Ch 1 Class 12

Which of the following marine fishes are considered direct descendents of fresh water ancestors?

Hagfish

Jelly Fish

Star Fish

Bony fishes

10 / 200

Category: Biology Ch 10 Class 11

Pseudocoelem develops from

Blastopore

Plastoquinone

Blastocoel

Splitting of mesoderm

11 / 200

Category: Biology Ch 10 Class 11

Of the following which one is non-cellular in most cases in animals?

Mesenchyme

Sclerenchyma

Chlorenchyma

Mesoderm

12 / 200

Category: Biology Ch 10 Class 11

All the animals of the grade radiata are

Diploblastic

Triploblastic

Both

Unicellular

13 / 200

Category: Biology Ch 10 Class 11

The name animal is derived from the word.

Anima

Anemia

Aname

All of these

14 / 200

Category: Biology Ch 10 Class 12

Analogous organs show

Convergent evolution

Divergent evolution

Straight evolution

Zig-zag evolution

15 / 200

Category: Biology Ch 10 Class 12

Important point/s of Lamarck’s theory

Use and disuse of organs

Inheritance of acquired characters

Natural selection

Both a and b

16 / 200

Category: Biology Ch 10 Class 12

The process that has transformed life on earth from its earliest forms to vast diversity is

Mutation

Evolution

Migration

Genetic drift

17 / 200

Category: Biology Ch 11 Class 12

Diverse and stable community at the end of succession is

Diverse Climax communityand stable community at the end of succession is A. Climax community B. Pioneers community C. Top community D. Stable community Answer & Explanation Answer: Option A

Pioneers community

Top community

Stable community A

18 / 200

Category: Biology Ch 11 Class 12

Study of a single population’s relationship to its environment is called

Ecology

Synecology

Autecology

Niche

19 / 200

Category: Biology Ch 12 Class 11

Certain types of whales are also ______ feeder.

Fluid

Macrophagous

Filter

None of these

20 / 200

Category: Biology Ch 12 Class 11

Nodules on roots of leguminous plants have _____ bacteria

Anaerobic

Nitrogen fixing

Nitrifying

Ammonifying

21 / 200

Category: Biology Ch 12 Class 11

Autotrophic organisms can exist in an exclusively ______ environment.

Organic

Inorganic

Wet

Terrestrial

22 / 200

Category: Biology Ch 12 Class 11

Magnesium is present in which of the following?

Cytochromes

ATP

Chlorophyll

Haemoglobin

23 / 200

Category: Biology Ch 12 Class 12

Temperature of temperate deciduous forests is

4-30 degree

45-50 degree

20-25 degree C

5-10 degree

24 / 200

Category: Biology Ch 12 Class 12

Evolution of vascular bundles in plants and skeleton in animals is an adaptation for

Hdrospheric ecosystem

Aquatic ecosystem

Terrestrial ecosystem

All of these

25 / 200

Category: Biology Ch 13 Class 11

Functional units of lungs are called

Alveoli

Air sacs

Parabronchi

None of these

26 / 200

Category: Biology Ch 13 Class 11

Gaseous exchange through the skin is known as ______ respiration.

Cuticular

Cutaneous

Skin

Pulmonary

27 / 200

Category: Biology Ch 13 Class 11

_________ respiration is directly involved in the production of energy, necessary for all living activities.

Organismic

Cellular

Both of these

None of thes

28 / 200

Category: Biology Ch 13 Class 12

Hot substance is escaped from inside the earth in the form of

Volcanoes

Hot springs

Geysers

All of these

29 / 200

Category: Biology Ch 13 Class 12

Geothermal energy is

. Energy obtained from nuclear fuel

Energy obtained from burning natural fuels

Heat energy trapped underground

Energy obtained from blowing hot winds

30 / 200

Category: Biology Ch 13 Class 12

Endangered species are

Dangerous for the life of humans

Reduced in number

Already extinct

All of these

31 / 200

Category: Biology Ch 2 Class 11

Which of the following carbohydrate is tasteless?

Monosaccharide

Oligosaccharide

Polysaccharide

None of these

32 / 200

Category: Biology Ch 2 Class 11

Which of the statement is not true for compounds like glycoprotein and glycolipids?

They are conjugated molecules of carbohydrates

Both have role in the extra cellular matrix of animals and bacterial cell wall

They are components of biological membranes.

Both are produced and secreted by endoplasmic reticulum

33 / 200

Category: Biology Ch 2 Class 11

Which bond provides stability to complex carbohydrate molecules?

C-H

C-O

C-C

C-N

34 / 200

Category: Biology Ch 2 Class 11

Reactions in which simple substances are combined to form complex substances are called:

Metabolic reactions

Catabolic reactions

Anabolic reactions

None of these

35 / 200

Category: Biology Ch 2 Class 12

Which one of the following forms the blk of exoskeleton of an arthropod?

Epicuticle

Procuticle

Ectocuticle

None of these

36 / 200

Category: Biology Ch 2 Class 12

Which of the following plays the major role in providing support to young herbaceous parts of the plant:

Living cells of epidermis with higher turgor pressure.

Living cells of cortex and pith with higher turgor pressure.

Collenchyma cells

All of these

37 / 200

Category: Biology Ch 2 Class 12

Gibberellins is an example of

Growth inhibitor

Growth stimulator

Growth hormone

None of these

38 / 200

Category: Biology Ch 3 Class 11

Inhibitors which block the enzyme by forming weak bond are called

Competitive inhibitors.

Non-competitive inhibitors

Irreversible inhibitors.

Both a and b

39 / 200

Category: Biology Ch 3 Class 11

If more substrate to already occurring enzymatic reaction is added and there is no effect on the rate of the reaction what is the form given to this situation:

Saturation

Denaturation

Composition

Inhibition

40 / 200

Category: Biology Ch 3 Class 11

Lock and Key model was proposed by

Emil Fischer

Koshland

Robin Williams

Rudolph Virchow

41 / 200

Category: Biology Ch 3 Class 12

Na+ -K+ ATPase pump is important for:

Maintenance of resting potential.

Massive out flux of K+ after depolarization.

Recovery of resting potential.

Conversion of resting potential into action potential.

42 / 200

Category: Biology Ch 3 Class 12

Which type of sensory structures carry deep pressure and vibration sensations?

Hair end organs

Meissner's Corpuscles.

Pacinian corpuscles.

none of these.

43 / 200

Category: Biology Ch 3 Class 12

Which of the following is antagonist to Auxin in terms of promotion of stem growth?

Gibberellins

Cytokinins

Abscisic Acid

none of these.

44 / 200

Category: Biology Ch 4 Class 11

60S and 40S subunit combine to form ______ particle

100 S

90 S

80 S

70 S

45 / 200

Category: Biology Ch 4 Class 11

Autophagosomes are

Those lysosomes which eat parts of their own cells to generate energy.

Those lysosomes which eat old and worn out cellular organelles.

Lysosomes which help in extracellular digestion

Both a and b

46 / 200

Category: Biology Ch 4 Class 11

Spherical or tubular membranes which separate the material present in endoplasmic reticulum from that of cytoplasmic material are called

Cytosol

Cisternae

Polysomes

Cristae

47 / 200

Category: Biology Ch 4 Class 11

Magnifying power of electron microscope as compared to eye is

500 X

250000X

500000X

250X

48 / 200

Category: Biology Ch 4 Class 12

Viviparous animals are those in which

. Internal fertilization with external development in eggs

Internal fertilization with internal development inside female body

Internal fertilization and internal development followed by hatching of egg

External fertilization with external development

49 / 200

Category: Biology Ch 4 Class 12

Which one is not a day neutral plant?

Cucumber

Maize

Cotton

Tobacco

50 / 200

Category: Biology Ch 5 Class 11

Viruses are ______ smaller than bacteria

10 – 100 times

10 – 1000 times

1000 – 10000 times

51 / 200

Category: Biology Ch 5 Class 11

Other name for Kingdom monera is:

Protoctista

Prokaryotae

Archae

None of these

52 / 200

Category: Biology Ch 5 Class 11

Those organisms which can prepare their own food from simple inorganic material and can store energy are called

Autotrophs

Heterotrophs

Procariotique

Eu-cariotique

53 / 200

Category: Biology Ch 5 Class 11

Which of the following category is most general with its members lest resembling with each other than the other categries:

Species

Genus

Family

Order

54 / 200

Category: Biology Ch 6 Class 12

Which statement is correct?

Leading strand elongates away from the replication fork

Lagging strand elongates towards the replication fork

Lagging strand is constructed discontinuously.

Both a and b

55 / 200

Category: Biology Ch 6 Class 11

Who discovered the bacteria causing tuberculosis and also developed various techniques of media preparation and maintenance of pure culture?

Robert Koch

Louis Pasteur

Alexander Fleming

Leeuwenhoek

56 / 200

Category: Biology Ch 6 Class 11

Some bacteria ranging occasionally a size of 500 ?m in length are

Escherichia coli

Spirochetes

Mycoplasma

Epulopiscuim

57 / 200

Category: Biology Ch 6 Class 11

Flagella originate from

Cell membrane

Cell wall

Capsule

Basal body

58 / 200

Category: Biology Ch 5 Class 12

Growth process is

Irreversible

Reversible

Sometimes reversible sometimes irreversible

Temporary

59 / 200

Category: Biology Ch 5 Class 12

Lateral meristems are present in

All plants

Gymnosperms and dicots

Monocots

In aquatic plants

60 / 200

Category: Biology Ch 5 Class 12

Growth of multicellular plants occur in

Two phases

Three phases

Five phase

Four phases

61 / 200

Category: Biology Ch 7 Class 12

A special area of centromere with specific base arrangement and specific proteins where spindle fibers are attached is called

Chromatin

Aster

Kinetochore

Primary constriction

62 / 200

Category: Biology Ch 7 Class 12

Meiosis occurs at the time of

Gamete formation in animals

Spore formattion in plants

Growth in animals

Both a and b

63 / 200

Category: Biology Ch 7 Class 11

Kingdom protista includes ______ phyla

27

28

26

29

64 / 200

Category: Biology Ch 7 Class 11

The only group of algae having no flagellated motile cells at any stage is :

Chrysophyta

Phaeophyta

Pyrrophyta

Rhodophyta

65 / 200

Category: Biology Ch 9 Class 11

Antheridiophore and archegoniophore are found in

Marchantia

Funaria

Both of these

None of these

66 / 200

Category: Biology Ch 9 Class 11

In Hornworts the band of meristematic tissue is found near

Foot

Gamete producing region

Spore producing region

At junction of a & b

67 / 200

Category: Biology Ch 8 Class 12

In question number 2 what will be frequency of dwarf plant in F2

0.25

0.5

0.75

0

68 / 200

Category: Biology Ch 8 Class 12

Which of the following is monohybrid cross

TT x tt

TTYy x Ttyy

Both of these

None of these

69 / 200

Category: Chemistry Ch 1 Class 11

How many moles of S02 contain 16 grams of oxygen?

0.5

1

2

2.4

70 / 200

Category: Chemistry Ch 1 Class 11

Chemical properties of an atom depends upon number of

Electron

Neutrons

Protons

Nucleons

71 / 200

Category: Chemistry Ch 1 Class 12

Metals usually produce hydrogen gas with acids. Which of the following produces hydrogen gas with NaOH?

Zn

Cu

Al

Ni

72 / 200

Category: Chemistry Ch 1 Class 12

7′ Period of the Periodic Table is:

Complete

Incomplete

Called Long Period

None of these

73 / 200

Category: Chemistry Ch 1 Class 12

Which of following pair has highest conductivity?

Gold, Aluminium

Gold, Tungsten

Silver, Copper

Carbon, Gold

74 / 200

Category: Chemistry Ch 10 Class 11

In Lead-Acid battery, product formed at anode during discharging is

PbSO4

Pb

SO2

SO4

75 / 200

Category: Chemistry Ch 10 Class 11

Oxidation state of sulphur in H2SO4?

+2

+6

4

-2

76 / 200

Category: Chemistry Ch 10 Class 12

Grignard reagent when added to dry ice gives:

Primary Alcohol

Alkyl Halide

Tertiary Alcohol

Carboxylic Acid

77 / 200

Category: Chemistry Ch 11 Class 12

Phenol Acts as

Mild agent

Reducing agent

Oxidizing agent

All of the above

78 / 200

Category: Chemistry Ch 11 Class 12

Methylated spirit Is % methanol and % ethanol:

5 and 95

20 and 80

60 and 40

50 and 50

79 / 200

Category: Chemistry Ch 11 Class 12

phenol, and ethers are the derivatives of?

Carboxylic acid

Alkenes

Organic derivatives of water

Benzene

80 / 200

Category: Chemistry Ch 11 Class 12

The aromatic compound having the functional group “OH” attached to It Is?

Carbolic acid

Phenol

Alcohol

None

81 / 200

Category: Chemistry Ch 11 Class 12

25 to 35 degree centigrade temperature is good for which of the following process?

Dow's method

Preparation of formalin

Fermentation

Methanol

82 / 200

Category: Chemistry Ch 11 Class 12

Melting point of methyl alcohol is?

-97.6 'C

-37.6 'C

-64.7'C

-94.6'C

83 / 200

Category: Chemistry Ch 12 Class 12

Ketone can be prepared by the oxidation of:

Primary alcohol

Secondary alcohol

Tertiary alcohol

None of these

84 / 200

Category: Chemistry Ch 12 Class 12

IUPAC name of propionaldehyde is:

Methanal

Acetaldehyde

Propanal

Butanal

85 / 200

Category: Chemistry Ch 13 Class 12

The carbonic acid which Is named after butter is:

Capric acid

Enanthic acid

Butyric Acid

Formic acid

86 / 200

Category: Chemistry Ch 13 Class 12

Solubility of carboxylic acids in water decrease with

Decrease in molecular mass

Increase in molecular mass

Both a and b

None of these

87 / 200

Category: Chemistry Ch 13 Class 12

The same carboxylic acid is obtained either by hydrolysis of a nitrite X or by oxidation of alcohol Y. Which pair could be X and Y? X Y

a

b

c

d

88 / 200

Category: Chemistry Ch 13 Class 12

What is correct order of acidic strength?

Carboxylic acid > alcohols > phenol > water

Carboxylic acid > phenol > water > alcohol

Water > alcohol > carboxylic acid > phenol

Phenol > alcohol > water > carboxylic acid

89 / 200

Category: Chemistry Ch 13 Class 12

Vinegar is basically acid:

Acetic

Citrus

Formic

Butyric

90 / 200

Category: Chemistry Ch 13 Class 12

Which of the following is used as coagulation for latex in rubber industry

Acetic acid

Amino acid

Ethyl alcohol

Rayon

91 / 200

Category: Chemistry Ch 14 Class 12

Which of the following is a monosaccharide ?

Maltose

Sucrose

lactose

Fructose

92 / 200

Category: Chemistry Ch 14 Class 12

Which of the following is not a disaccharide?

Sucrose

Lactose

Raffinose

Dextrin

93 / 200

Category: Chemistry Ch 15 Class 12

Which of the following is the most widely used fertilizer in Pakistan?

Ammonium Nitrate

Ammonia

Calcium Nitrate

Urea

94 / 200

Category: Chemistry Ch 15 Class 12

Ammonium nitrate contain nitrogen

82

46

20

35

95 / 200

Category: Chemistry Ch 15 Class 12

In Paper industry, sodium sulphite is buffered with

Sodium carbonate

Sodium hydroxide

Sodium acetate

Both a and b

96 / 200

Category: Chemistry Ch 16 Class 12

Which one is correct about Incineration of Industrial waste?

Ash buried in sea water.

Secondary chamber is maintained at temperature range 650 C to 1100 C

Smoke stacks emit oxides of nitrogen and carbo

Solids wastes are the significant sources of dioxins

97 / 200

Category: Chemistry Ch 16 Class 12

NO2 in atmosphere absorbs moisture to form?

HNO3

HNO2

NO

Both a and b

98 / 200

Category: Chemistry Ch 2 Class 11

Which of the following can ba employed instead of filter papers?

Gooch Crucible

Sintered Glass Crucible

Both a and b

None of these

99 / 200

Category: Chemistry Ch 2 Class 11

Water and mercury can be separated by:

Evaporation

Sublimation

Filtration

Solvent extraction

100 / 200

Category: Chemistry Ch 2 Class 12

Which one of the following is a common mineral of calcium? a

Feldspar

Limestone

Diamond

None of these

101 / 200

Category: Chemistry Ch 2 Class 12

Which of the following is not true about caustic soda? a) It causes painful burns c) It is manufactured by Costner—Kellner process e) Both b and d

) It causes painful burns

It is manufactured by Costner—Kellner process

Both b and d

b) It has purgative smell

d) It is used os on anti-acid

102 / 200

Category: Chemistry Ch 3 Class 11

When gases expand, this causes:

Cooling

Heating

Remain constant

None

103 / 200

Category: Chemistry Ch 3 Class 11

2 gasses at SIP, with equal volume and equal pressure will have same a

K.E

Mass

Number of molecule

Weight

104 / 200

Category: Chemistry Ch 3 Class 12

Which of the following is used to make container for nitric acid?

iron

Plastic

Alumuium

Helim

105 / 200

Category: Chemistry Ch 3 Class 12

Solubility of Borax decahydrate at 100C is

63 grams

113 grams

99.3 grams

58.5 grams

106 / 200

Category: Chemistry Ch 3 Class 12

Which element of group 4A shows inert pair effect?

Ge

Pb

Si

C

107 / 200

Category: Chemistry Ch 4 Class 11

Loose electrons present in outer shell meansv

High melting point

High boiling point means:

High conductivity

None of these

108 / 200

Category: Chemistry Ch 4 Class 11

Covalent bond is stronger than hydrogen bond by:

10 times

20 times

30 times

50 times

109 / 200

Category: Chemistry Ch 4 Class 12

Nitrogen has oxides:

2

3

1

Several

110 / 200

Category: Chemistry Ch 4 Class 12

Which of the following does not occur in Free State?

Nitrogen

Phosphorous

Oxygen

Sulphur

111 / 200

Category: Chemistry Ch 5 Class 11

Bracket series of 14-atom is in which of the following regions of electromagnetic spectrum?

Far infrared

Near infrared

Infrared

Visible

112 / 200

Category: Chemistry Ch 5 Class 11

Which quantum number decides energy of orbitals?

Magnetic quantum number

Principal quantum number

Azimuthal quantum number

All of these

113 / 200

Category: Chemistry Ch 5 Class 12

Which of the following is the highest oxidizing agent?

F2

Cl2

Br2

I2

114 / 200

Category: Chemistry Ch 5 Class 12

The reduction of which of the following produces Hydrofluoric acid?

a) XeF2

XeF4

Xe F6

All of the above

115 / 200

Category: Chemistry Ch 6 Class 11

Electronegativity is defined as the power of an atom in a molecule to

Repel electrons towards itself

Attract electrons towards itself

Expand itself

All of the above

116 / 200

Category: Chemistry Ch 6 Class 11

Down the group atomic radii increases due to?

Increase in screening effect

Repulsion between the electrons of valence shell

Increase in nuclear charge

All of these

117 / 200

Category: Chemistry Ch 6 Class 11

In period, moving from left to right

Electro negativity decreases

ElectronegativIty Increases

Electro negativity remains same

None of these

118 / 200

Category: Chemistry Ch 6 Class 11

Which of the following has greatest electronegativity?

Cl2

Br2

I2

Cs

119 / 200

Category: Chemistry Ch 6 Class 12

Number of unpaired electrons in ferrous ion is:

2

3

5

4

120 / 200

Category: Chemistry Ch 7 Class 11

Burning of fuel is a

Endothermic

Exothermic

Both a & b

None of these

121 / 200

Category: Chemistry Ch 7 Class 12

Which of the following is an organic compound?

Explosives

Paper

Plastic

All of these

122 / 200

Category: Physics Ch 1 Class 11

SI unit of acceleration is

ms^-1

ms^-2

ms^2

ms

123 / 200

Category: Physics Ch 1 Class 11

Volume of sphere having radius 17 cm Is:

20579.53 cm^3

0.03 cm^3

0.08 cm^3

0.01 cm^3

124 / 200

Category: Physics Ch 10 Class 11

The electrical signals change into light signals for transmission through optical fibre. A light pulse
represent.

Zero (0)

One (1)

Both zero (0) and one (1)

Neither zero (0) nor one (1)

125 / 200

Category: Physics Ch 10 Class 11

Final image produced by a compound microscope is

Real and inverted

Real and erect

Virtual and erect

Virtual and inverted.

126 / 200

Category: Physics Ch 10 Class 11

In going form a denser to rarer medium a array of light is

undeviated

bent away form the normal

bent towards the normal

polarized

127 / 200

Category: Physics Ch 11 Class 11

Efficiency of the Carnot’s cycle will be 100% if the temperature of cold reservoir is:

+273K

-273K

100K

0 K

128 / 200

Category: Physics Ch 12 Class 12

Capacitance increases by

Increasing supplied Voltage

Increasing the Separation of plates

Increasing supplied current

Increasing the Area of Plates

129 / 200

Category: Physics Ch 12 Class 12

0.37q charge Is stored on the capacitor, what will be the current?

37%

63%

86%

None

130 / 200

Category: Physics Ch 12 Class 12

The electric field of a point charge is in shape.

Spherical

Spherical symmetrical

Plane

Cylindrical

131 / 200

Category: Physics Ch 12 Class 12

What is farad of electricity?

A/s

6.02×10^23 electrons charge

Coulomb x volt

None of these

132 / 200

Category: Physics Ch 12 Class 12

If voltage of a capacitor is 60 v then what will be the voltage if diamond is present as •dielectric

Less than 60

More than 60

60

None of these

133 / 200

Category: Physics Ch 12 Class 12

Flux passing through an area does not depend upon

Medium

Shape of hypothetical surface

Numbers of line passing through the area

None of these

134 / 200

Category: Physics Ch 12 Class 12

Two negative charges are present at a distance d. A third positive charge is placed somewhere between these charges. This positive charge will be in equilibrium.

Stable

Unstable

Neutral

None of these

135 / 200

Category: Physics Ch 13 Class 12

Siemen is the SI unit of:

Conductivity

Resistivity

Conductance

None of these

136 / 200

Category: Physics Ch 13 Class 12

If a magnetic field around a current carrying wire is anticlockwise then the direction of current flow is a

Upwards

Downward

Rightward

Leftward

137 / 200

Category: Physics Ch 14 Class 12

What are dimensions of Magnetic Flux

a

b

c

d

138 / 200

Category: Physics Ch 14 Class 12

A current carrying conductor is lying perpendicular to magnetic field and experiencing some force. If the conductor rotates by 60 degrees counter clock wise, the force on it will

Increase

Decrease

Will be same

None of these

139 / 200

Category: Physics Ch 14 Class 12

Ammeter lies in

Series

Parallel

Either a or b

None of these

140 / 200

Category: Physics Ch 14 Class 12

If length of solenoid gets doubled while keeping N (number of turns) constant, the resultant magnetic field will be?

B/2

B/4

2B

B/3

141 / 200

Category: Physics Ch 15 Class 12

Which electrical quantity cannot be changed by a transformer?

Voltage

Current

Power

Inductance

142 / 200

Category: Physics Ch 15 Class 12

A coil is placed near a magnet. Emf will be induced in it when

Area of coil is changed

Coil is rotated

Magnet which was placed at a distance is moved closer to it.

All of these

143 / 200

Category: Physics Ch 16 Class 12

RLC circuit can be excited by

AC

DC

Both a and b

None of these

144 / 200

Category: Physics Ch 16 Class 12

In a pure resistive circuit current and voltage are

In phase

Out of phase

Current leads

Voltage leads

145 / 200

Category: Physics Ch 16 Class 12

An Inductor of 1H Is connected across a 220V, 50Hz supply. The peak value of current is approximately:

0.5A

0.7A

1A

1.4A

146 / 200

Category: Physics Ch 17 Class 12

Aluminum Is a

Metal

Non Metal

Photo conductor

Semiconductor

147 / 200

Category: Physics Ch 18 Class 12

AC is converted to D.C by:

Oscillator

Rectifier

Amplifier

DC motor

148 / 200

Category: Physics Ch 19 Class 12

Earth is a/an frame of reference

Inertial

Non-inertial

Both

None

149 / 200

Category: Physics Ch 19 Class 12

What would be Compton Wave shift if X-rays are scattered at an angle of 90 degree?

Equal to Compton wavelength

Zero

Maximum

Minimum

150 / 200

Category: Physics Ch 19 Class 12

Mass of a body with speed of light approaches to:

Ze ro

Infinity

Remains same

None of these

151 / 200

Category: Physics Ch 19 Class 12

Heisenberg uncertainty principle states:

Position & Momentum of a particle can be accurately measured simultaneously

Position & Momentum of a particle can be accurately measured simultaneously only under certain condition

Position & Velocity of a particle can be accurately measured simultaneously

Position & Momentum of a particle cannot be accurately measured simultaneously

152 / 200

Category: Physics Ch 19 Class 12

The absolute standard of rest is:

Earth

Sun

Galaxy

Non- existent

153 / 200

Category: Physics Ch 2 Class 11

If the velocity v being a vector quantity is multiplied to scaler quantity mass, the result will be:

Vector

Scaler

These two cannot be multiplied

None

154 / 200

Category: Physics Ch 20 Class 12

If an electron jumps from 68′ orbit to 7 orbit, the increase in radius will be:

90%

25%

33%

17%

155 / 200

Category: Physics Ch 20 Class 12

In hydrogen spectrum, Lyman and Balmer series belong to which region?

) Lyman = Visible, Balmer = Ultraviolet

Lyman = Ultraviolet, Balmer = Visible

Lyman = Infrared, Balmer = Ultraviolet

None of the

156 / 200

Category: Physics Ch 20 Class 12

If an electron undergoes transition from 4th to 2nd orbit, then the color of radiations produced will be:

Violet

Blue-Green

Ultraviolet

Red

157 / 200

Category: Physics Ch 21 Class 12

What’s relation between penetrating power and Ionization power

Inverse

Direct

Depends on radiation

None

158 / 200

Category: Physics Ch 21 Class 12

Penetration power of gamma rays as compared to alpha rays is

Greater

Less

Equal

Either a or c

159 / 200

Category: Physics Ch 21 Class 12

Which of the following Is not true about radioactivity?

Is a nuclear phenomenon

Is not altered by any physical change

Is not altered by any chemical change

Is a property relating to outside the nucleus.

160 / 200

Category: Physics Ch 21 Class 12

Which of the following consist of two quarks? a

Leptons

Baryon

Meson

None of these

161 / 200

Category: Physics Ch 3 Class 11

Path followed by a projectile is known as?

Trajectory

Ellipse

Distance

None of these

162 / 200

Category: Physics Ch 3 Class 11

The expression dp/dt represents

Impulse

Time

Angular momentum

Force

163 / 200

Category: Physics Ch 3 Class 11

A body with constant speed can still be accelerating. This statement Is:

True

False

Depends on the frame of reference

None of these

164 / 200

Category: Physics Ch 3 Class 11

Dimensions of linear Momentum are:

MLT^-1

ML^2T^2

M^2LT^1

MLT^-2

165 / 200

Category: Physics Ch 3 Class 11

In elastic collision

KE is conserved

Momentum is conserved

Both a and b

None of these

166 / 200

Category: Physics Ch 4 Class 11

Escape velocity of Neptune is:

2.4

10.4

25.4

37.0

167 / 200

Category: Physics Ch 4 Class 11

Escape velocity of moon is

2.38 km/s

3.38 km/s

4.38 km/s

5.38 km/s

168 / 200

Category: Physics Ch 4 Class 11

Two bodies X of mass 4kg and Y of mass 6 kg have same linear momentum. If the kinetic energy of Y is 48 J then kinetic energy of body X is:

48 J

64 J

72 J

96 J

169 / 200

Category: Physics Ch 4 Class 11

The escape velocity of a body from the earth is Ve If the radius of the earth contracts to 1/4th its value, keeping the mass of the earth constant, the escape velocity will be

Double

Half

Same

Triple

170 / 200

Category: Physics Ch 4 Class 11

Which one of them is not conservative force?

Gravitational force

Tension in string

Elastic spring force

Electric force

171 / 200

Category: Physics Ch 5 Class 11

A particle is moving in a circle with radius r and velocity v if radius is doubled keeping the velocity constant, the value of tangential acceleration will be:

Doubled

Quadrupled

Halved

Same

172 / 200

Category: Physics Ch 5 Class 11

Apparent weight of a body In an elevator accelerating downwards is given by

m (g + a)

ma

Zero

m (g — a)

173 / 200

Category: Physics Ch 5 Class 11

On doubling the mass, the linear momentum and angular momentum of the body will be:

Remain same

Increased

Decreased

Doubled

174 / 200

Category: Physics Ch 6 Class 11

terminal velocity of a water droplet is dependent on:

Mass

Radius

Both a and b

None

175 / 200

Category: English – Synonyms and Antonyms

Choose the word most opposite in meaning to “Incomparable”

Unique

Rival

Attire

Routine

176 / 200

Category: English – Synonyms and Antonyms

Choose the word closest in meaning to “Cardinal”

Prehistoric

Prevailing

Novel

Contemporary

177 / 200

Category: English – Synonyms and Antonyms

Choose the word closest in meaning to “Hierarchical”

Bureaucracy

Stratified

Origin

Grain

178 / 200

Category: English – Synonyms and Antonyms

Choose the word closest in meaning to “Effrontery”

Meekness

Chutzpah

Caution

Mess

179 / 200

Category: English – Synonyms and Antonyms

Choose the word closest in meaning to “Beholden”

Debuted

Ungrateful

Bound

Bonding

180 / 200

Category: English – Synonyms and Antonyms

Choose the word closest in meaning to “Fulminate”

Vilify

Praise

Laud

Loud

181 / 200

Category: English – Synonyms and Antonyms

Choose the word closest in meaning to “Juxtaposition”

Distance

Remoteness

Proximity

Abroad

182 / 200

Category: English

Q.181.Choose the Correct sentence

A) He worked a lot last year, and he could not get what he wanted.

B) He worked a lot last year, and he could not get what he wanted.

C) He worked a lot last year. He could not got what he wanted.

D) He worked a lot last year, as he could not get what he wanted

183 / 200

Category: English Analogies

Wrestler : Arena

Cricket : Pitch

Ring : Finger

Farmer : Field

Assistant : Clerk ,

184 / 200

Category: English Analogies

Sound : Muffled

Moisture : Humid

Color : Faded

Despair : Anger

Odor : Pungent

185 / 200

Category: English Analogies

Implicate : Incriminate

Involvement : Malpractice

Embezzlement : Charge

Exonerate : Acquit

Perjury : Fraud

186 / 200

Category: English Analogies

Spring : Summer

Adolescence : Youth

Fight : Battle

Stagger : Walk

Read : Learn

187 / 200

Category: English Analogies

19) Cattle : Drove a)

Soldier : Crew

) Grain : Bundle

Chicken : Brood

Bees : Heap

188 / 200

Category: English Analogies

Defunct : Lifc

Stagnant : Motion

Orderly : Pattern

Arid : Desert

Obese : Weight

189 / 200

Category: English Grammar

Owing to the power cut in the area, factories are being forced to –men

Throw Away

Send Off

Put Off

Lay Off

190 / 200

Category: English Reading Comprehension

Diana Prince of Wales, became famous when she decided to marry Prince Charles. She became the most photographed, Photographed person in the world. Everywhere she went, there were photographers taking pictures of her and people were very interested in her clothes, where she went on holiday and who she Was v They were also interested in the problems between her and her husband. When they iv remained very popular. In addition to her image as a ‘star’ c , Princess Diana used her influence toill and dedicated time to helping them and drawing public attention to their problems. She used to visit homeless people regularly and did a lot of work for the National AIDS Trust; she visited people suffering from AIDS. It is implied in the passage that before her marriage to Prince Charles, Diana was •

a) Widowed by another Prince of Wales

b) An unknown figure to public

c) Followed by an army of photographers

d) Was one of the victims of the epidemic AIDS

191 / 200

Category: English Reading Comprehension

passage 1 Opera Opera refers to a dramatic art form, originating in Europe, in which the emotional content is conveyed to the audience as much through music, both vocal and instrumental, as it is. through the lyrics. By contras% in musical theater an actor’s dramatic performance is primary, and the music plays a lesser role. The drama in opera is presented using the primary elements of theater such as scenery, costumes, and acting. However, the words of the opera, or libretto, are sung rather than spoken. The singers are accompanied by a musical ensemble ranging from a small instrumental ensemble to a full symphonic orchestra.

It is stated in the reading that

a) Acting and costumes are secondary to music in. musical theater

b) Many people find musical theater more captivating than opera

c) Music in musical theater is not as important as it is in opera

d) An opera requires a huge orchestra as well as a large chOir

192 / 200

Category: Logical Reasoning – Cause & effect

Statements:

I The police authority has recently caught a group of house breakers.

II The citizens group in the locality have started night vigil in the area.

Statement I is the cause and statement II is its effect

Statement II is the cause and statement I is its effect

Both the statements I and II are independent causes

Both the statements I and II are effects of independent causes

Both the statements I and II are effects of some common cause

193 / 200

Category: Logical Reasoning – Course of action

Statement: Severe drought is reported to have set in several parts of the country.

Courses of Action:

I Government should immediately make arrangement for providing financial assistance to those affected.

II Food, water and fodder should immediately be sent to all these areas to save the people and cattle.

Only I follows

Only II follows

Either I or II follows

Neither I nor II follows

Both I and II follow

194 / 200

Category: Logical Reasoning – Critical thinking

While many people think of genetic manipulation of food crops as being aimed at developing larger and larger , some plant breeders have in fact concentrated on discovering or producing dwarf varieties, which are roughly half as tall as normal varieties. Which of the following would, if true, most help to explain the strategy of the plant breeders referred to above?

Plant varieties used as food by some are used as ornamentals by others.

The wholesale prices of a given crop decrease as the supply of it increases

Crops once produced exclusively for human consumption are often now used for animal feed.

Short plants are less vulnerable to strong wind and heavy rains

195 / 200

Category: Logical Reasoning – Letter and symbol series

ZA5, Y4B, XC6, W3D, _____

E7V

V2E

VE5

VE7

196 / 200

Category: Logical Reasoning – Logical problems

Tanya is older than Eric.

Cliff is older than Tanya.

Eric is older than Cliff.

If the first two statements are true, the third statement is

true

false

uncertain

None

197 / 200

Category: Logical Reasoning – Logical deduction

Statements: Some doctors are fools. Some fools are rich. Conclusions: Some doctors are rich Some rich are doctors.

Only conclusion I follows

Only conclusion II follows

Either I or II follows

Neither I nor II follows

198 / 200

Category: Chemistry

The indicator is a colored compound?

Organic

Inorganic

Acidic

Basic

199 / 200

Category: Chemistry

Water in solution acts as?

Acid

Base

May be acid or base

None of these

200 / 200

Category: Chemistry

Which of the following atoms would be diamagnetic?

Ne

O

Al

K

Your score is

The average score is 65%

0%

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