School Quizzes

Maharashtra State Board School Quizzes

Quiz on Properties of Substances (General Science)

Vincent Augustine D'Souza

Standard Eight Science

1. Which are the states of matter?

continent, ocean, sky
solid, liquid, gas
beauty, brain, brawn
comet, planet, star
Correct Answer: solid, liquid, gas

2. What is melting point?

The temperature at which a substance changes from solid to liquid.
The point at which two elements meet.
The point where neutrons and protons collide.
Freezing point.
Correct Answer: The temperature at which a substance changes from solid to liquid.

3. What is boiling point?

The point where compound elements split.
The temperature at which snow becomes ice.
The point where smoke starts.
The temperature at which a liquid boils.
Correct Answer: The temperature at which a liquid boils.

4. What is evaporation?

Liquid becomes solid.
Solid becomes liquid.
Liquid changes into gas.
Gas becomes solid.
Correct Answer: Liquid changes into gas.

5. What changes from solid to liquid to gas when a candle burns?

wax
naphtha
petrol
coal
Correct Answer: wax

6. What is the melting point of ice?

20◦C
10◦C
0◦C
5◦C
Correct Answer: 0◦C

7. What is the boiling point of water?

150◦C
100◦C
200◦C
84◦C
Correct Answer: 100◦C

8. Which method is used to obtain salt from sea water in salt pans?

distillation
refining
purification
evaporation
Correct Answer: evaporation

9. What is the boiling point of ethanol?

120◦C
74◦C
78◦C
84◦C
Correct Answer: 78◦C

Originally posted 2015-11-24 11:20:56.