Chemistry 9 Chapter 5 - Physical States of Matter -6

Chemistry 9 Chapter 5 - Physical States of Matter -6

1. In the mountains the atmospheric pressure is?

a) 3 atm
b) 1 atm
c) Less than 1 atm
d) 2 atm

2. In mountains, the water boils?

a) None

b) Below 100 degree centigrade

c) Above 100 degree centigrade

d) At 100 degree centigrade

3. In a pressure cooker, at 2 atm, the water boils at?

a) 20 degree centigrade

b) 120 degree centigrade

c) 50 degree centigrade

d) 100 degree centigrade

4. At the top of Mount Everest, water boils at?

a) 120 degree centigrade

b) 50 degree centigrade
c) 100 degree centigrade
d) 70 degree centigrade

5. The process in which a liquid is heated to vapourize it and the
vapours are cooled to condense them back to the liquid in a different
container is known as?

a) Sublimation
b) Distillation
c) Evaporation
d) Condensation

6. Which one of the following is the property of a liquid?

a) All of these
b) Vapour pressure
c) Boiling point
d) Distillation

7. Which one of the following have closely packed particles?

a) None
b) Gases

c) Solids

d) Liquids

8. Which one of the following is incompressible?

a) All of these
b) Liquids
c) Solids

d) Gases

9. The temperature at which a solid turns into a liquid is called as?

a) Boiling point

b) Distillation

c) Melting point

d) Evaporation

10. When we cool a liquid, it?

a) Evaporates
b) Vapourizes

c) Freezes

d) None

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