| Column 1 | Column II |
| A. Polycyclic aromatic hydrocarbons B. Dioxins C. IR active molecules D. Peroxy acetyl nitrate | 1. Global warming 2. Photochemical 3. Carcinogens 4. Waste incineration |
A) A B C D 3 4 1 2
B) 4 3 2 1
C) 3 4 2 1
D) 1 2 3 4
Correct Answer: A
Solution :
Polycyclic aromatic hydrocarbons are carcinogens, /.e.. cancer producing dioxins are waste incineration. IR active molecules such as \[C{{O}_{2}}\] are related with global warming. PAN (peroxy acetyl nitrate) forms photochemical smog.
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