Chemical Composition of Air (CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III)): Questions 11 - 16 of 17

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Question number: 11

» Chemical Composition of Air » Particles, Ions and Radicals in the Atmosphere

Appeared in Year: 2011

MCQ▾

Question

Chemical formula for CFC-113 is (December)

Choices

Choice (4) Response

a.

CCl2F2

b.

CCl2F3

c.

CCl3F3

d.

C2Cl3F3

Question number: 12

» Chemical Composition of Air » Chemistry of Air Pollutants

Appeared in Year: 2011

MCQ▾

Question

The primitive atmosphere of earth consisted of – (December)

Choices

Choice (4) Response

a.

CO2,NO2,NH3,SO2

b.

CO,N2O3,SO3,H3N

c.

He,Ne,Ar,Kr

d.

H2,NH3,CH4,H2O

Question number: 13

» Chemical Composition of Air » Chemistry of Air Pollutants

Appeared in Year: 2013

MCQ▾

Question

If air quality standard for carbon monoxide is 9.0 ppmV, the percentage as in mgm3 at 1 atm at 25 is (December)

Choices

Choice (4) Response

a.

5.6 mgm3

b.

20.0 mgm3

c.

10.3 mgm3

d.

15.2 mgm3

Question number: 14

» Chemical Composition of Air » Particles, Ions and Radicals in the Atmosphere

Appeared in Year: 2013

MCQ▾

Question

Which of the following is not a reactive oxygen species? (December)

Choices

Choice (4) Response

a.

Hydroxyl ion

b.

Singlet oxygen

c.

Hydrogen peroxide

d.

Superoxide anion

Question number: 15

» Chemical Composition of Air » Particles, Ions and Radicals in the Atmosphere

MCQ▾

Question

Which of the following appears to contribute to global cooling rather than global warming?

Choices

Choice (4) Response

a.

Chlorofluorocarbons

b.

Methane

c.

Aerosols

d.

Nitrous oxide

Question number: 16

» Chemical Composition of Air » Thermochemical and Photochemical Reactions in Atmosphere

MCQ▾

Question

Which of the following are sources of Methane, a greenhouse gas?

1. Domestic Animals

2. Coal Mining

3. Wetlands

Select the correct answer using the code given below:

Choices

Choice (4) Response

a.

1 and 3 only

b.

2 only

c.

1, 2 and 3

d.

1 and 2 only

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