Chemical Composition of Air (CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III)): Questions 1 - 5 of 17

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Question number: 1

» Chemical Composition of Air » Photochemical Smog

Appeared in Year: 2011

MCQ▾

Question

In urban areas, the main constituents of photochemical smog in winter season are (June NET Paper 2)

Choices

Choice (4) Response

a.

Hydrocarbons+CO+PAN

b.

Hydrocarbons+NOx+O3+PAN

c.

Hydrocarbons+SO2+PAN

d.

SO2+NOx+PAN+Hydrocarbons

Question number: 2

» Chemical Composition of Air » Photochemical Smog

Appeared in Year: 2014

MCQ▾

Question

The classical smog is mainly composed of (December)

Choices

Choice (4) Response

a.

NOx and smoke particulates

b.

SO2 And NOx

c.

O3 And SO2

d.

SO2 and smoke particulates

Question number: 3

» Chemical Composition of Air » Chemistry of Air Pollutants

Appeared in Year: 2015

MCQ▾

Question

Trichloromonofluoromethane is:

(1) Freon – 11

(2) A spray can propellant

(3) A chlorofluorocarbon

Choose the correct answer: (June)

Choices

Choice (4) Response

a.

1, 2 and 3

b.

1 and 3 only

c.

2 and 3 only

d.

1 only

Question number: 4

» Chemical Composition of Air » Classification of Elements

Appeared in Year: 2009

MCQ▾

Question

The mass of 1 mole of electron is equal to (December)

Choices

Choice (4) Response

a.

9.1094×6.16×1028g

b.

9.1094×1031×6.023×1023kg

c.

(9.1094×1031)/6.023×1023kg

d.

(6.023×1023)/6.1094×1028gm

Question number: 5

» Chemical Composition of Air » Chemical Process to Form Inorganic and Organic Particulate Matter

Appeared in Year: 2015

MCQ▾

Question

Burning of 1 mol of CH4 liberates 890 kJ of energy and 1 mol of CO2 . Since 1 mol of CO2 has 12 g of carbon, the higher heating value (HHV) of methane is: (June)

Choices

Choice (4) Response

a.

10.0gCMJ

b.

12.0gCMJ

c.

13.5gCMJ

d.

18.5gCMJ

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