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Chemical Properties of Ammonia

nbsp;Dry ammo...

Question

Dry ammonia gas has no action on litmus paper, but a solution of ammonia in water turns red litmus paper blue, why is it so?

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Solution

Ammonia reacts with water to form ammonium hydroxide. Ammonium hydroxide is a base and hence it turns red litmus blue.
NH₃ (g) + H₂O (l) â†’ NH₄OH (aq)

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Dry ammonia gas has no action on litmus paper but a solution of ammonia in water turns red litmus paper blue.
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