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Which of the following are wrong statements ?

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NO is more harmful than $N O_{2}$

$S O_{2}$ is more harmful than $S O_{3}$

Acid rain contains mainly $H N O_{3}$

Acid rain contains mainly $H_{2} S O_{4}$ and lesser concentrations of $H N O_{3}$ and HCl.

answer is A, B, C.

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Detailed Solution

Correct statements are $N O_{2}$ is more harmful than NO, $S O_{3}$ is more harmful than $S O_{2}$ , and acid rain contains mainly $H_{2} S O_{4}$ and lesser amounts of $H N O_{3}$ .

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