Give a chemical test to distinguish between the following pair of compounds:

Hydrogen chloride gas and hydrogen sulphide gas.

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Solution

When a glass rod dipped in the ammonia solution is brought near the mouth of the test tube containing $H C l$ gas, dense white fumes are observed which are not in the case of hydrogen sulphide gas.

$N H_{3} + H C l ⟶ N H_{4} C l$
(dense white fumes)

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Similar questions

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.

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.

(C) Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate. [3 MARKS]

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