Which of the following does not use concentrated sulphuric acid as a drying agent during its manufacture?

Hydrochloric acid

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Sulphur dioxide

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Chlorine

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Ammonia

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Solution

The correct option is D Ammonia
Concentrated sulphuric acid is a dehydrating agent as this acid has the capability to remove chemically combined hydrogen and oxygen from substances in the ratio equivalent to that of water. Concentrated sulphuric acid is used as a drying agent during the manufacturing of chlorine, sulphur dioxide and hydrochloric acid. Concentrated sulphuric acid reacts with ammonia to form salt and water as concentrated sulphuric acid is acidic and ammonia is basic in nature.
$2 N H_{3} + H_{2} S O_{4} \to (N H_{4})_{2} S O_{4}$

Therefore, we do not use concentrated sulphuric acid as a drying agent for the manufacturing of ammonia.

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Similar questions

Q. Why is Concentrated Sulphuric acid not used as a drying agent to dry Hydrogen gas?

Q. Difference between the function of concentrated sulphuric acid as a drying agent and as a dehydrating agent

Why is :

(a) concentrated sulphuric acid kept in air tight bottles ?

(b) $H_{2} S O_{4}$ is not used as a drying agent for $H_{2} S$ ?

(a) Name the process used for the large scale manufacture of sulphuric acid.
(b) Which property of sulphuric acid accounts for its use as a dehydrating agent?
(c) Concentrated sulphuric acid is both an oxidising agent and a non-volatile acid. Write one equation each to illustrate the properties of sulphuric acid mentioned above.

(c) (i) Name the process used for the large scale manufacture of sulphuric acid.
(ii) Which property of sulphuric acid accounts for its use as a dehydrating agent?
(iii) Concentrated sulphuric acid is both an oxidizing agent and non-volatile acid. Write one equation each to illustrate the above mentioned properties of sulphuric acid.

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