1. Ozone is present in?
- (a) Mesosphere
- (b) thermosphere
- (b) Stratosphere
- (d) troposphere
2. All are air pollution EXCEPT?
- (a) Not
- (b) N2
- (c) SO2
- (d) SO4
3. Which one of the following is responsible for global warming?
- (a) Increase in concentration of N2
- (b) Increase of concentration of CO2
- (c) Increase of concentration of 02
- (d) Increase of concentration of 03
4. Is the pH of acid rain less than?
- (a) 13.6
- (b) 10.6
- (c) 7.6
- (d) 5.6
5. The coldest region in the atmosphere is?
- (a) Troposphere
- (b) stratosphere
- (b) Mesosphere
- (d) thermosphere
6. Ozone is formed in the presence c4 ultraviolet radiations from?
- (a) 0 and 0
- (b) 02 and 0
- (b) 02 and 02
- (d) 02 and 03
7. The gas(es) which is/are responsible for acid rain is/are?
- (a) SO2
- (b) NO2
- (b) CO2
- (d) all 502, NO2 and CO2
8. based on temperature variation, the number of atmospheric regions is?
- (a) Five
- (b) two
- (c) three
- (d) five
9. The gas which protects the earth’s surface from ultraviolet radiation is?
- (a) CO2
- (b) N2
- (c) O3
- (d) O2
10. The lowest temperature in the troposphere is?
- (a) 5C
- (b) -5C
- (c) 56C
- (d) -56C
11. Under high pressure which of the following gas how show more ideality in characterA
- A) N2
- B) NH3
- C) CO2
- D) SO2
12. Which is incorrect about ideal gas
- A) No force of attraction between molecules
- B) NO example in nature
- C) Can be liquefied easily
- D) Obey gas laws at all condition of temperature and pressure
13. Volume of a gas at STP is 10 dm3 at what temperature its volume will become 30dm3, keeping pressure constant
- A) 3ᵒC
- B) 819K
- C) 819ᵒC
- D) 3K
14. Which of the following pairs o gases possess equal volume at STP
- A) 44g CO2 and 44g CO
- B) 16g O2 and 32gCH4
- C) 3.01×1023 molecules of CO and 3.01 × 1023gram molecules of H2
- D) 0.5 mole of NO and 16g O2
15. Absolute zero is
- A) -273 K
- B) -459.67ᵒF
- C) 0ᵒC
- D) -546 K
16. A gas initially at 27ᵒC is heated up to 327ᵒC , its average K.E will be
- A) Doubled
- B) 300 times
- C) Four times
- D) 327times
17. The correct value of general gas constant R is
- A) 8.314 atm dm3 mol-1K-1
- B) 62.4 torr cm3 mol-1K-1
- C) 0.0821 jmol-1K-1
- D) 8.314 × 107 erg mol-1K-1
18. Absolute temperature of a gas is directly proportional to average_________
- A) Rotational K.E
- B) Vibrational K.E
- C) Translational K.E
- D) All
19. An ideal gas can’t be liquefied because
- A) Its critical temperature is always above 0ᵒC
- B) It solidifies before becoming a liquid
- C) Its molecules are smaller in size
- D) Forces between its molecules are negligible
20. A fire extinguisher delivers 2.2 Kg of CO2. Volume of CO2 at STP is
- A) 12dm3
- B) 120d m3
- C) 1120dm3
- D) 2400dm3
21. When 200ml of gas at constant pressure is heated, its volume
- A) Increases
- B) Decreases
- C) Remain unchanged
- D) First increases then decreases
22. The product of PV of a gas is unit of
- A) Force
- B) Work
- C) Entropy
- D) Enthalpy
23. Under what condition of temperature and pressure will a real gas behave most like an ideal gas?
- A) Low temperature and low pressure
- B) Low temperature and high pressure
- C) Standard temperature and standard pressure
- D) High temperature and low pressure
24. Evaporation is designated as a cooling process because of the reason
- A) it is a surface phenomenon
- B) it involves heat absorption from its surrounding
- C) High energy molecules leave behind the low energy molecules and cause cooling
- D) All of the above
25. Vapour pressure of a liquid depends upon the following
- A) Surface area temperature only
- B) Volume of the liquid
- C) Humidity of the liquid
- D) Temperature and the inter-molecular force
| Test 1 | Test 2 | Test 3 | Test 4 | Test 5 |
| Test 6 | Test 7 | Test 8 | Test 9 | Test 10 |
