Free Printable 10th NTSE MCQs -12 Physics, Chemistry &Biology

1.

Newton's law explains force qualitatively

a)

Second Law

b)

First Law

c)

Third Law

d)

none of these

2.

Magnetic flux is a ___________ quantity.

a)

Scalar

b)

Vector

c)

Tenson

d)

none of these

3.

A light ray incident will an angle of 300, on the equilateral prism, find the deviation angle of a prism

\left(\mu=\sqrt{2}\right)

a)

600

b)

450

c)

300

d)

900

4.

The direction of conventional current in a circuit from battery _________ terminal to _________ terminal

a)

$+^{ve},\ +^{ve}$

b)

$-^{ve},\ +^{ve}$

c)

$-^{ve},\ -^{ve}$

d)

$+^{ve},\ -^{ve}$

5.

A convex lens of focal length 10cm. When the object is placed at 5m in front of a lens the magnification of the lens is

a)

negative

b)

positive

c)

neither positive nor negative

d)

either positive or negative

6.

SI unit of specific resistance is

a)

ohm/m

b)

mho-m

c)

ohm-m

d)

mho-1.m-1

7.

If a ray of light diverges through a convex mirror after reflection it passes

a)

parallel to the principal axis

b)

through the center of curvature

c)

retraces its path

d)

passes along the principal axis.

8.

A person is observing a distinct object the power of his eye lens is

a)

42D

b)

40D

c)

25D

d)

46D

9.

When ice melts into the water, the temperature of ice is

a)

increases

b)

decreases

c)

constant

d)

none of these

10.

Acceleration due to gravity (g) of the earth is dependent on

a)

mass of an object

b)

the direction of an object

c)

the velocity of an object

d)

mass of the earth

11.

__________ helps in eye controlling the amount of light entering into the eye.

a)

iris

b)

lens

c)

ciliary muscles

d)

retina

12.

The work done by a chemical force on a unit charge to bring into one terminal of the battery to another terminal is called

a)

voltage

b)

e.m.f

c)

current

d)

resistance

13.

Among the following which is not an application of electromagnetic induction

a)

working of induction stove

b)

security alarm in shopping malls

c)

dynamo

d)

electric fan

14.

The increase of food grain in the production of improved varieties of crops is often referred to as

a)

White revolution

b)

green revolution

c)

yellow revolution

d)

blue revolution

15.

The network of the food chain is known as

a)

food web

b)

trophic level

c)

ecological pyramid

d)

ecosystem

16.

A depleting source of energy is _________

a)

wind

b)

sunlight

c)

water

d)

fossil fuels

17.

Which of the following plays an important role in the nitrogen cycle?

a)

Rhizopus

b)

Nitrobacter

c)

Mucor

d)

Spirogyra

18.

The pyramid of biomass is inverted in

a)

pond ecosystem

b)

grassland ecosystem

c)

forest ecosystem

d)

all of these

19.

Bacteria that are present in the intestine is useful in

a)

Excretion

b)

Digestion

c)

Absorption

d)

Assimilation

20.

The rabies vaccine was invented by

a)

Louis Pasteur

b)

Ronald ross

c)

Edward Jenner

d)

Flemming

21.

__________ gas is released during fermentation

a)

Carbon dioxide

b)

Hydrogen

c)

Sulpher

d)

all of these

22.

Test tube babies are formed through

a)

test tubes

b)

testing kits

c)

invitro fertilization

d)

external fertilization

23.

The scientist who performed cloning for the first time is

a)

Flemming

b)

Jenner

c)

Watson

d)

Ian Wilmut

24.

Sieve tubes and companion cells are present in

a)

Xylem

b)

Phloem

c)

Bark

d)

Cambium

25.

The number of mitochondria present in each cell is about

a)

100-200

b)

150-200

c)

100-150

d)

100-300

26.

A mixture of acetone

\left(B.P.\ 58\degree C\right)

and ethyl alcohol

\left(B.P\ 78.3\degree C\right)

can be separated by

a)

distillation

b)

fractional distillation

c)

fractional crystallisation

d)

sublimation

27.

The total number of orbitals are present in 4th orbit of an atom of element

a)

$2^2$

b)

$3^2$

c)

$2^3$

d)

$4^2$

28.

The weight at Mg is required to get 80 grams of MgO in the reaction $Mg+O_2\rightarrow MgO$ is

a)

48

b)

24

c)

12

d)

72

29.

$CH_3COOH+NaOH\rightarrow x+H_2O;$ where 'x' is

a)

$CH_3COONa$

b)

$CH_3-CH_2-ONa$

c)

$CO_2$

d)

$CH_4$

30.

The molecular weight of $CuSO_45H_2O$ is

a)

249.5

b)

159.5

c)

294.5

d)

294

31.

The isotope of which element is used for the treatment of cancer disease

a)

uranium

b)

cobalt

c)

iodine

d)

chlorine

32.

The electronic configuration of an atom is 2.8.. Which of the following element has similar chemical properties with it?

a)

N

b)

F

c)

P

d)

Ar

33.

Which of the following is main ingredient of Biogas and $CN_4$

a)

ethyne

b)

propane

c)

methane

d)

butane

34.

Which of the following is an acid?

a)

NaOH

b)

$NH_4NO_3$

c)

$Mg\left(OH\right)_2$

d)

$H_3BO_3$

35.

What is the chemical formula of rust of iron?

a)

$Fe_2O_3$

b)

$Fe_2O_3H_2O$

c)

$FeO$

d)

$FeO_2$

10th NTSE MCQs -12 Physics, Chemistry &Biology

Total questions: 35

Worksheet time: 21mins

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