Environmental Chemistry The Atmosphere Test 03

Total Questions: 23

1 - The smell of photocopier machines is due to the presence of:

A ) chlorine gas
B ) neon gas
C ) helium gas
D ) ozone gas ✅

2 - PAN stands for:

A ) poly aniline nitrate
B ) Peroxy acety1 nitrite ✅
C ) poly acety1 nitrate
D ) peroxy acety1 nitrate

3 - Fossil fuel means:

A ) coal
B ) petroleum
C ) natural gas
D ) all of these

4 - The range of temperature in burning solid waste in incinerators is:

A ) 650°C to 100°C
B ) 650°C to 1100°C ✅
C ) 1000°C to 2000°C
D ) 500°C to 1000°C

5 - Incinerator reduces solid waste into:

A ) ash
B ) flue gas
C ) heat
D ) all of these

6 - Which is not a part of flue gas?

A ) furans
B ) dioxins
C ) HCI
D ) H2SO4 ✅

7 - Thermosphere lies beyond:

A ) stratosphere
B ) troposphere
C ) mesosphere ✅
D ) biosphere

8 - The solid particles deposited on the filter paper during filtration is called:

A ) filtrate
B ) residue ✅
C ) mixture
D ) all of these

9 - The stratosphere layer is at height above the earth's surface:

A ) 85 - 120 km
B ) 50 - 85 km
C ) 12 - 50 km ✅
D ) 0 - 12 km

10 - The formula of ozone is:

A ) O2
B ) O3 ✅
C ) O
D ) CO

11 - Temperature range of atmosphere is:

A ) 17° C to 58°C
B ) -58°C to 2°C
C ) 2°C to -93 °C
D ) greater them -93°C ✅

12 - Mesosphere is at a height about Earth's surface:

A ) 0–12 km
B ) 12-50 km
C ) 50-85 km ✅
D ) 85- 120 km

14 - Increase in which of the following cases the increase in temperature of stratospheric region:

A ) Pressure
B ) Concentration of CO2
C ) Conc. Of water vapours
D ) Altitude ✅

15 - Stratosphere has a temperature range:

A ) 17°C to - 58°C
B ) -58°C to -2°C ✅
C ) 2°C to -93°C
D ) greater than -93°C

16 - In mesosphere, temperature:

A ) decreases upwards ✅
B ) increases upwards
C ) Show no change while going upwards
D ) none of these

19 - What is the height of thermosphere from the Earth's surface:

A ) 0–12 km
B ) 12-50 km
C ) 50-85 km
D ) 85 -120 km ✅

20 - Combination of O and O2 in the mid stratosphere is a/an ____reaction:

A ) Exothermic ✅
B ) Endothermic
C ) Both (a) & (b)
D ) None of these

21 - Which of the following is a secondary pollutant:

A ) SO3
B ) PAN ✅
C ) CH3
D ) ammonia

22 - % age of oxygen gas by volume in dry air is ____.

A ) 90 %
B ) 20.94 % ✅
C ) 30.94 %
D ) 40 %

23 - Which factor determines the severity of a pollutant?

A ) chemical nature
B ) concentration
C ) Persistence
D ) All of the above