Question

Match the following with its example

Column I	Column II
(A) Gaseous	(i) Oxides of Nitrogen and ${CO}_{2}$
(B) Acid Rain.	(ii) ${CO}_{2}, {CH}_{4}, CFCs$
(C) Global Warming.	(iii) $N_{2} O, {CH}_{4}, H_{2} S$

Accepted Answer

(A)- (iii)
$N_{2} O, {CH}_{4}, H_{2} S$ are in gaseous state at room temperature. Nitrogen oxide is a naturally occurring gas that is colourless, non-inflammable, very stable at room temperature, methane and hydrogen sulphide is also found in gaseous state.

(B)- (i)
Oxides of Nitrogen and carbon dioxide reacts which $H_{2} O$ to form acid rain. The rain water (pH= $5.6$ ) that is acidic in nature is referred to as acid rain because of the presence of such chemicals. The primary cause of acid rain is due to the presence of fog, smog, water droplets in the environment, sulphuric acid and nitric acid.
$H_{2} O + {CO}_{2} \to H_{2} {CO}_{3}$
$4 {NO}_{2} + H_{2} O + O_{2} \to 4 {HNO}_{3}$

(C)- (ii)
${CO}_{2}, {CH}_{4}, CFCs$ are trapped by gases coming from solar radiation. Due to which temperature of Earth increases. The rest of heat radiates back to the atmosphere. Thus, they add to the heating of atmosphere and causes global warming.

Shikha Goel and Saleha Parvez Solutions for Chapter: Atmospheric Pollution, Exercise 5: CHAPTER EXERCISE

Shikha Goel Chemistry Solutions for Exercise - Shikha Goel and Saleha Parvez Solutions for Chapter: Atmospheric Pollution, Exercise 5: CHAPTER EXERCISE

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