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

1.

Among the following which one is a cooling process

a)

Condensation

b)

Boiling

c)

Evaporation

d)

Melting

2.

Which one is not an application of ultrasound?

a)

Stethoscope

b)

Imaging of organs

c)

drilling holes or making cuts of desired shapes

d)

the glittering of a diamond

3.

A light ray enters from a denser medium to a rarer medium. What is the angle of incidence called that has

90\degree

angle of refraction.

a)

Angle of refraction

b)

Critical Angle

c)

Angle of Deviation

d)

Angle of Reflection

4.

The absolute refractive index of any medium is

a)

1

b)

<1

c)

>1

d)

Zero

5.

At the top of its path, a projectile has

a)

acceleration in the downward direction

b)

acceleration in the horizontal direction

c)

no acceleration

d)

acceleration in the upward direction

6.

Out of two bulbs 50w-220v and 100w-220v, which one will glow brighter (i) connected in series (ii) when connected in parallel

a)

(i) 50w (ii)100w

b)

(i) 100w (ii)100w

c)

(i) 100w (ii) 50w

d)

none of these

7.

The frequency of the alternating current supplied in India is

a)

60Hz

b)

100Hz

c)

220Hz

d)

50Hz

8.

The use of slip rings in an electric motor is

a)

to rotate the armature

b)

to change the direction of current in the armature

c)

to apply the magnetic field

d)

none of these

9.

The amount of light entering the human eye is controlled by

a)

Ciliary muscles

b)

Cornea

c)

Pupil

d)

Iris

10.

Among the following which color suffers more deviation after passes through a prism

a)

blue

b)

red

c)

orange

d)

yellow

11.

100g of water at

40\degree C

is mixed with 200g of water at

10\degree C

. What is the final temperature of the mixture?

a)

$50\degree C$

b)

$40\degree C$

c)

$25\degree C$

d)

$20\degree C$

12.

A body at rest can have

a)

acceleration

b)

kinetic energy

c)

mechanical energy

d)

momentum

13.

A convex lens forms a real, inverted, magnified image, guess the position of the object

a)

at infinity

b)

between 2F and F

c)

beyond 2F

d)

between F and optic center

14.

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

a)

uranium

b)

cobalt

c)

iodine

d)

chlorine

15.

The by-product of the soap industry is

a)

glycol

b)

glucose

c)

glycerol

d)

ethanol

16.

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

17.

Which of the following is an acid?

a)

NaOH

b)

$NH_4NO_3$

c)

$Mg\left(OH\right)_2$

d)

$H_3BO_3$

18.

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

a)

ethyne

b)

propane

c)

methane

d)

butane

19.

Which of the following is the functional group of propanone?

a)

-COOH

b)

-CHO

c)

$\prod_{-C-}^O$

d)

-OH

20.

The element having the largest atomic radius among the following is

a)

Li

b)

Be

c)

B

d)

C

21.

The formula of chloride of an element is $XCl_3$ The formula of its oxide will be

a)

$XO_2$

b)

$XO_3$

c)

$X_2O_3$

d)

$X_3O_2$

22.

The no. of molecules present in 1 mole of $O_2$ is

a)

$6.023\times10^{23}$

b)

$2x6.023\times10^{23}$

c)

$6.023\times10^{24}$

d)

$6.023\times10^{22}$

23.

What is the chemical formula of rust of iron?

a)

$Fe_2O_3$

b)

$Fe_2O_3H_2O$

c)

$FeO$

d)

$FeO_2$

24.

Valency electrons in $Cl^-$ ions are

a)

18

b)

8

c)

7

d)

9

25.

Which of the following compound gives effervescence with $Na_2CO_3$

a)

$CH_3CHO$

b)

$CH_3COOH$

c)

$CH_3CH_2OH$

d)

$CH_3-O-CH_3$

26.

Which of the following is an aerosol?

a)

Shaving cream

b)

Milk

c)

Rubber

d)

Automobile exhaust

27.

In Vertebrate liver cells, it plays a crucial role in detoxifying many poisons and drugs.

a)

SER

b)

RER

c)

Lysosomes

d)

Vacuoles

28.

Cell theory was proposed by

a)

Schleiden

b)

Schwann

c)

Schleiden & Schwann

d)

Rudolf Virchow

29.

Example of modern methods of irrigation

a)

drip

b)

sprinkler

c)

Basin irrigation

d)

none of these

30.

Identify the mismatched pair 1) DDT - Triple antigen 2) Tetracyclin - malaria and 3) Cinchona - Plague

a)

1 only

b)

2 and 3

c)

1 and 3

d)

3 only

31.

Which of the following terms represents a pair of contrasting characters?

a)

allele

b)

phenotype

c)

homozygous

d)

heterozygous

32.

The genotype of the F1 heterozygous tall plants is

a)

TT

b)

Tt

c)

tt

d)

none of these

33.

The assimilatory power in Photosynthesis is

a)

ATP

b)

NADPH

c)

ATP and NADPH2

d)

ATP, NADPH2 and $CO_2$

34.

Saliva has the enzyme

a)

pepsin

b)

ptyalin

c)

trypsin

d)

rennin

35.

Which of the following cells of pancreas produce insulin?

a)

$\alpha\ cells$

b)

B cells

c)

$\beta$

d)

T cells

36.

One heartbeat in an average man lasts

a)

0.8 sec

b)

0.2 sec

c)

0.5 sec

d)

one minute

37.

The energy level in the food chain is known as

a)

Habitat

b)

Food web

c)

Trophic level

d)

Niche

38.

Ecological pyramids were discovered by

a)

Odum

b)

Mishra

c)

Charles Elton

d)

Tansley

39.

The useful part of Jatropha Curcas is

a)

Cork

b)

Leaf

c)

root

d)

Seed

40.

"Life line for a large part of Telangana" is

a)

Krishna River

b)

Musi River

c)

Sri Ram Sagar project

d)

Godavari River

10th NTSE MCQs -10 Physics, Chemistry &Biology

Total questions: 40

Worksheet time: 20mins

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