Which substance is suitable for drying ammonia gas effectively?

Chemical Engineering Basics MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Chemical Engineering Basicschemical-engineering › chemical-engineering-basics
Published
11 Feb 2019
Last updated
28 May 2026

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Explanation

Ammonia gas is best dried using quicklime (calcium oxide) because it does not react with it. Other drying agents like phosphorus pentachloride, calcium chloride, and concentrated sulfuric acid react with ammonia, making them unsuitable for drying this gas.

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