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Class 9th Chemistry Chapter 5
Total Marks: 34
1. The gaseous law that give relationship between volume and pressure is :
Dalton\'s law
Charles\'s Law
Graham\'s law
Boyle\'s law
2. The blood pressure of healthy person is :
120 / 80 mmHg
140 / 90 mmHg
110 / 100 mmHg
150 / 70 mmHg
3. The constant factor in boyle\'s law is :
Volume
Pressure
Temperature
Mole
4. Absolute Temperature Scale introduced by :
Charles
Boil
Henry
Kelvin
5. The temperature at which in ideal gas would have zero volume is ?
- 760 C
- 171.15 C
- 273.15 C
- 3.73.15 C
6. Density of a gas increases, when its:
Temperature increases
Increase of temperature
Increase of intermolecular forces
Increase of polarity of molecules
7. 1 atm is equivalent to how many pascals?
101325
10325
106075
10523
8. Which one of the following is not amorphous?
Rubber
Plastic
Glass
Glucose
9. The vapour pressure of a liquid increases with the:
Increase of pressure
Increase of temperature
Increase of intermolecular forces
Increase of polarity of molecules
10. Solid particles possess which one of the following motions?
Rotational motion
Vibrational motion
Translational motion
both translational and vibrational motions
11. At freezing point which one of the following coexists in dynamic equilibrium:
Gas and solid
Liquid and gas
Liquid and solid
All of these
12. The simplest form of matter is.
Gas
Liquid
Solid
Both B & C
13. Matter exists in how many physical state?
1
2
3
4
14. The escaping of gas molecules through a tiny hole into a space with lesser pressure called.
Evaporation
Mobility
Diffusion
Effusion
15. Tyre puncture is an example of
Effusion process
Diffusion process
Evaporation process
Condensation process
16. Which instrument is used to measure atmospheric pressure?
Manometer
Barometer
Lactometer
Voltameter
17. The apparatus used to measure the pressure in laboratory is.
Hydrometer
Monometer
Thermometer
Galvanometer
18. One atm is equal to
1 torr
760 torr
101326 torr
1 mm of Hg
19. Gases can be compressed because
There are no empty spaces between gas molecules
There are large empty spaces between gas molecules
Molecules are very close to each other
Molecules are very large in size
20. At normal atmospheric pressure and 0 C the density of oxygen gas is.
1.4 gdm-3
1.4 gdm-2
1.4 kgdm-3
1.5 gdm-3
21. Polar liquids have vapour pressure than non-polar liquids at the same temperature
Greater
Low
Equal
Dynamic
22. Vapour pressure of water in mmHg at 20 C is.
4.58
17.5
55.3
149.4
23. How many covalent bonds does N molecule have?
2
3
4
5
24. The process of changing of a gas phase into liquid is called
Evaporation
Melting
Transpiration
Condensation
25. Boiling point of alcohol is.
68 C
78 C
88 C
98 C
26. The boiling point of acetic acid is.
118 C
128 C
100 C
180 C
27. The boiling point of water is
0 C
60 C
100 C
120 C
28. Freezing point of water is.
) 0 C
2 C
1 C
100 C
29. Freezing point of Ethyl alcohol is.
-115 C
+15 C
+116 C
-116 C
30. Density of water is.
1.00 gcm-3
1.08 gcm-3
0.108 gcm-3
0.001 gcm-3
31. Which one of the following is amorphous solid?
Glucose
Sodium Chloride
Glass
Diamond
32. The particles of solid substances are not mobile this property is called
Rigidity
Density
Allotropy
Mobility
33. _________ is an example of amorphous solid
Sodium Chloride
Diamond
Plastics
Glucose
34. Which is crystalline solid?
Diamond
b) Glass
Plastic
Rubber