LIQUID & SOLID
CHEMISTRY
LIQUID & SOLID
TEST-1
1. The pressure
exerted by vapours called______ pressure.
(a) Vapour
(b) Partial
(c) Aqua
(d) Atmospheric
2. Boiling of
liquid depends on ______.
(a) Only pressure
(b) Only temperature
(c) Only volume
(d) Both temperature & pressure
3. The evaporation
is independent of _____.
(a) Temperature
(b) Nature of liquid
(c) Intermolecular forces
(d) Amount of liquid
4. Which force of
attraction usually present between liquid atoms? (a) Coordinate covalent bond
(b) Covalent bond
(c) Vander Waals forces
(d) All of above
5. The presence of ionic substances in liquid _____.
(a) Increases boiling point of liquid
(b) Decreases boiling point of liquid
(c) Does not effect on boiling point
(d) None
6. ________
reduces atmospheric temperature.
(a) Condensation
(b) Evaporation
(c) Contraction
(d) All
7. Evaporation is
a / an _____.
(a) Endothermic process
(b) Exothermic process
(c) Heating process
(d) None
8. Liquids boil
below their boiling points at ____.
(a) 1atmospheric pressure.
(b) Below 1atm pressure
(c) Higher than 760mm Hg pressure
(d) None
9. Boiling point
of liquid decreases with ______.
(a) Heating
(b) Lower external pressure
(c) Volume
(d) No. of moles of
liquid
10. Vacuum
distillation is used for ______ of liquids.
(a) Compression
(b) Diffusion
(c) Boiling
(d) Distillation
11. Increase the
vapour pressure of a liquid ______.
(a) Decrease its
volume
(b) Increase its mass
(c) Makes the liquid
much close to boiling point
(d) Increase its
boiling point
12. The slow rate of
diffusion of liquids is due to _____.
(a) Slow movement of molecules
(b) Large space between molecules
(c) Size of molecules
(d) Small space between molecules
13. ________ is used
to show that a sample of water is pure?
(a) Boiling point
(b) Vapour pressure
(c) Condensation
(d) All
14. In pressure
cooker boiling point of a liquid is ______.
(a) Increased
(b) Decreased
(c) Remain same
(d) None
15. Vapour pressure
is greatest in a liquid boils at ______.
(a) 30OC
(b) 60OC
(c) 90OC
(d) All have same
16. Evaporation depends on_______.
(a) Surface area
(b) Pressure
(c) Amount of liquid
(d) All
17. Expansion is a/an ________Process.
(a) Reversible
(b) Endothermic
(c) Exothermic
(d) All
18. Which alcohol is most
volatile?
(a) Methanol
(b) Butanol
(c) Propanol
(d) Ethanol
19. During condensation the energy of molecules
_____.
(a) Increases
(b) Decreases
(c) Remain same
(d) Both A & B
20. Cooling favors
______of a liquid.
(a) Condensation
(b) Contraction
(c) Freezing
(d) All
ANSWER KEY
QUESTION
NO.
|
ANSWER
KEY
|
1.
|
A
|
2.
|
D
|
3.
|
D
|
4.
|
B
|
5.
|
A
|
6.
|
B
|
7.
|
A
|
8.
|
B
|
9.
|
B
|
10.
|
C
|
11.
|
C
|
12.
|
D
|
13.
|
A
|
14.
|
A
|
15.
|
D
|
16.
|
A
|
17.
|
B
|
18.
|
A
|
19.
|
B
|
20.
|
D
|