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Class 8th F Chapter # 5 test 1

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

spreading of rotten egg smell throughout the room is an example of .....

a)

Effusion

b)

diffusion

c)

density

d)

pressure

2.

which gas is produced in rotten egg

a)

hydrogen

b)

hygrogen oxide

c)

hydrogen sulphide

d)

hydrogen disulphide

3.

leaking of gas mlecules through a small hole is an example of...

a)

pressure

b)

density

c)

effusion

d)

diffusion

4.

SI unit of pressure is

a)

mmHg

b)

torr

c)

atm

d)

pascal

5.

which statement is correct

a)

pascal is larger unit

b)

1 pascal is equal to 1kPa

c)

1atm = 101.325kPa

d)

1Pa = 2atm

6.

volume of gas decreases by increasing

a)

density

b)

pressure

c)

temperature

d)

both pressure and temperature

7.

which statement is true about gases

a)

not easily compressible

b)

fill entire available space

c)

high density

d)

can't exert pressure

8.

1 atm =

a)

760torr

b)

760mmHg

c)

1.01325Pa

d)

all above

9.

density of a gas ___________ with increase in temperature

a)

increase

b)

decrease

c)

same

d)

no effect

10.

density of oxygen at 00 C is

a)

1.6g/dm3

b)

1.5g/dm3

c)

1.4g/dm3

d)

1.7g/dm3