Metallic sulphide reacting with hydrochloric acid forms salt and ___.

hydrogen gas.

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carbon dioxide gas.

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sulphur dioxide gas.

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hydrogen sulphide gas.

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Solution

The correct option is D
hydrogen sulphide gas.

Metallic sulphide reacting with hydrochloric acid forms salt and hydrogen sulphide gas.

$N a_{2} S + 2 H C l \to 2 N a C l + H_{2} S ↑$

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Similar questions

Question 33
Write a balanced chemical equation for each of the following reactions and also classify them.

(a) Lead acetate solution is treated with dilute hydrochloric acid to form lead chloride and acetic acid solution.

(b) A piece of sodium metal is added to absolute ethanol to form sodium ethoxide and hydrogen gas.

Translate the following statements into chemical equations and then balance them.

(a) Hydrogen gas combines with nitrogen to form ammonia.

(b) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.

(d) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.

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