An acidic gas that reacts with water to give two acids is:

carbon dioxide

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hydrogen sulphide

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nitrogen

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oxygen

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Solution

The correct option is C carbon dioxide
When carbon dioxide reacts with water, it will undergo hydrolysis to form an acid, i.e., carbonic acid( $H_{2} C O_{3}$ ).
$C O_{2}$ + $H_{2} O$ $⇌$ $H_{2} C O_{3}$
$C O_{2} (g)$ + $H_{2} O (l)$ $⇌$ $H^{+} (a q)$ + $H C O_{3}^{-} (a q)$

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