Calcium hydroxide reacts with carbon dioxide to form................ (1) Calcium carbonate and water (2) Calcium carbonate and hydrogen (3) Calcium bicarbonate with water (4) None of the above

Answer: (1)

An aqueous solution of calcium hydroxide or lime water reacts with carbon dioxide gas to produce a solid calcium carbonate precipitate and water. The calcium carbonate formed in the reaction is insoluble in water.

The chemical equation for the above reaction can be given as below,

Ca(OH)2(aq) + CO2 (g) CaCO3(s) + H2O(l)

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