Matter in Our Surrounding Test

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Matter in Our Surrounding Test - 18

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Weekly Quiz Competition

Question 1
1 / -0

Evaporation is a type of vaporization of a liquid that occurs from _________.

A
bottom of a solid

B
bottom of a liquid

C
surface of a gas

D
surface of a liquid

Solution

Evaporation is a type of vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase that is not saturated with the evaporating substance. Evaporation occurs only at the surface of a liquid.
Question 2
1 / -0

When the temperature of solid increases:

A
velocity of particle decreases

B
velocity of particle increases

C
velocity of particle does not change

D
none of the above

Solution

The particles of solid are strongly held together by force of attraction. They appear to vibrate at a fixed point. When the temperature of solid increases, velocity of the particles increases. The ordered arrangement of solid breaks and a physical change occurs.
Question 3
1 / -0

Water on decreasing pressure and increasing temperature converts into:

A
ice

B
water

C
water vapour

D
None of these

Solution

On decreasing pressure and increasing temperature, liquid converts to gas as the particles get more energy and the space between them becomes large as there is less pressure. So water gets converted to water vapour.
Question 4
1 / -0

Water on increasing pressure and decreasing temperature converts into _______________.

A
ice

B
hydrogen and oxygen

C
water vapour

D
None of these

Solution

On increasing pressure and decreasing temperature, liquid gets converted into solid as there remains less space between particles and the particles moves slowly as the temperature reduces. So water gets converted into ice.
Question 5
1 / -0

Which of the following is not matter?

A
Chair

B
Dettol

C
Smell

D
Sugar

Solution

Matter is anything which occupies space and has mass. Chair, dettol and sugar occupy space and have mass. Smell does not occupy space and does not have mass.
Question 6
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Which of the following statements is/are true about matter?

A
Matter is made up of particles.

B
The particles are very small in size.

C
Particles of matter have space between them.

D
All of these.

Solution

Matter is made up of very small particles which have spaces between them.
Question 7
1 / -0

Matter can exist as _____________.

A
solid

B
liquid

C
gas

D
A, B or C

Solution

Matter commonly exists in all three states (or phases): solid, liquid or gas. All solids have a definite shape, distinct boundaries and fixed volumes and have negligible compressibility. Liquids have no fixed shape but have a fixed volume. Gases are highly compressible as compared to solids and liquids.
Question 8
1 / -0

_______ is the heat supplied during change of state of matter.

A
Enthalpy

B
Latent heat

C
Endothermic

D
Exothermic

Solution

Latent heat is the heat that is supplied to matter during the change of state. For example, latent heat of fusion.
Question 9
1 / -0

Smoke moves randomly because ______________.

A
moving particles of air collide with smoke

B
smoke does not have kinetic energy

C
both A and B

D
none of above

Solution

Smoke particles move randomly because tiny particles of air collide with tiny particles of smoke again and again which are in motion.
Question 10
1 / -0

Two different solutions G and H are poured into beakers of the same size in the figure.
After two days, H becomes lighter than G. Which of the following conclusions are not true?

A
(i) and (ii) only

B
(i) and (iii) only

C
(ii) and (iii) only

D
(i), (ii) and (iii)

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Re-Attempt Weekly Quiz Competition

Matter in Our Surrounding Test - 18

Result

Matter in Our Surrounding Test - 18

Score

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SHARING IS CARING

Question 1

bottom of a solid

bottom of a liquid

surface of a gas

surface of a liquid

Solution

Question 2

velocity of particle decreases

velocity of particle increases

velocity of particle does not change

none of the above

Solution

Question 3

ice

water

water vapour

None of these

Solution

Question 4

ice

hydrogen and oxygen

water vapour

None of these

Solution

Question 5

Chair

Dettol

Smell

Sugar

Solution

Question 6

Matter is made up of particles.

The particles are very small in size.

Particles of matter have space between them.

All of these.

Solution

Question 7

solid

liquid

gas

A, B or C

Solution

Question 8

Enthalpy

Latent heat

Endothermic

Exothermic

Solution

Question 9

moving particles of air collide with smoke

smoke does not have kinetic energy

both A and B

none of above

Solution

Question 10

(i) and (ii) only

(i) and (iii) only

(ii) and (iii) only

(i), (ii) and (iii)

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