A gaseous pollutant which dissolves in rainwater resulting in the formation of acid rain.

Water vapour

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Carbon monoxide

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Sulphur dioxide

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Nitrogen

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Solution

The correct option is C Sulphur dioxide
Sulphur dioxide react with water to form sulphurous acid while sulphur trioxide reacts with water to form sulphuric acid.

$S + O_{2} \to S O_{2}$

$S O_{2} + \frac{1}{2} O_{2} + H_{2} O \to H_{2} S O_{4}$

Oxides of sulphur coming from exhaust fumes react with rain water forming sulphuric acid which causes acidic rain. It is highly corrosive in nature causing yellowing of marble.

Option C is correct.

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Which of the following oxides upon dissolution in rainwater causes acid rain?

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