Question

Match the Lists I and II and pick the correct matching from the codes given below.

List I	List II
(i) Peroxy acetyl nitrate	1. Carcinogens
(ii) Polycyclic aromatic hydrocarbons	2. Global warming
(iii) IR active molecules	3. Photochemical smog
(iv) Dioxins	4. Waste incineration

• A. (i) - 3, (ii) - 1, (iii) - 4, (iv) - 2
• B. (i) - 3, (ii) - 2, (iii) - 4, (iv) - 1
• C. (i) - 3, (ii) - 1, (iii) - 2, (iv) - 4
• D. (i) - 4, (ii) - 2, (iii) - 1, (iv) - 3

Answer 1

The correct option is C (i) - 3, (ii) - 1, (iii) - 2, (iv) - 4

1. Photochemical smog consists of primary and secondary pollutants. Primary pollutants consist of nitrogen oxides and volatile organic compounds, whereas secondary pollutants consist of Peroxy acetyl nitrate and ozone.
2. Aromatic hydrocarbons containing two or more fused rings are called Polycyclic aromatic hydrocarbons. It is found that the number and position of certain groups such as methyl, hydroxide, cyanide, and methoxy in these compounds give rise to carcinogenicity.
3. IR active molecules such as $HCl,CO,$ and $NO$ absorb the radiation from the infrared region and causes global warming.
4. Dioxins are a group of chlorinated organic compounds that are formed in Waster Incineration.