Assertion :Carbonates and bicarbonates are oxidized to $C O_{2}$ , upon addition of strong acid in it. Reason: $C O_{2}$ is the only gas which turns lime water milky.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is D Both Assertion and Reason are incorrect
$C a r b o n a t e s$ and $b i c a r b o n a t e s$ are oxidized to $C O_{2},$ upon Simple healing.
For example: $2 N a H C O_{3} ⟶ N a_{2} C O_{3} + H_{2} O + C O_{2} N a_{2} C O_{3} ⟶ N a_{2} O + C O_{2}$
Also with weak acids, they are oxidized to $C O_{2} .$
$N a H C O_{3} + C H_{3} C O O H ⟶ C H_{3} C O O N_{a} + H_{O} + C O_{2}$
Also, apart from $C O_{2},$ $S O_{2}$ can also turn limewater milky as,
$C a (O H)_{2} + S O_{2} ⟶ C a S O_{4} + H_{2} O .$

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