When metal carbonates and metal hydrogen carbonates react with acids, it forms

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Water only

Carbon dioxide only

Carbon dioxide and water only

Salt, Carbon dioxide and water only

answer is C.

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Detailed Solution

When metal carbonate/metal hydrogen carbonate reacts with acid they produce salt along with carbon dioxide and water. The molecular formula of metal carbonates contain ${CO}_{3}^{2 -}$ ions.

For example the reaction of sodium carbonate and hydrochloric acid is
$N a_{2} C O_{3} + 2 HCl \to 2 NaCl + H_{2} O + C O_{2}$

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