Nitric acid reacts with "X" to release carbon dioxide gas. Identify X from the given options.

Sodium

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Calcium hydroxide

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Calcium carbonate

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Hydrochloric acid

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Solution

The correct option is C Calcium carbonate
Carbon dioxide is released only when acids react with a metal carbonate. Here, calcium carbonate will react with nitric acid to give calcium nitrate, water and carbon dioxide gas.
Two acids cannot combine with each other to release carbon dioxide gas.
Acids react with base like calcium hydroxide to give salt and water.
Also, acids react with metals like sodium to give metal salt and hydrogen gas.

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Similar questions

Write a balanced chemical equation for each of the following :

1. Carbon disulphide burns in air to give carbon dioxide and sulphur dioxide.

2. Calcium hydride reacts with water to form calcium hydroxide and hydrogen gas.

3. Methyl alcohol burns in air to form carbon dioxide and water.

4. Liquid hydrogen peroxide decomposes to give water and oxygen gas.

5. Aluminium hydroxide reacts with sulphuric acid to give ammonium sulphate and water.

6. Aluminium sulphate solution reacts with sodium hydroxide to form a precipitate of aluminium hydroxide.

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