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(A) Ammonia $(NH_3)$ is a basic gas. To dry a basic gas,we must use a basic drying agent. If an acidic drying agent is used,it will react with the amm

Vedclass · Accepted Answer

Calcium oxide

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(A) Ammonia $(NH_3)$ is a basic gas. To dry a basic gas,we must use a basic drying agent. If an acidic drying agent is used,it will react with the ammonia to form a salt. $CaCl_2$ forms an adduct with $NH_3$ $(CaCl_2 \cdot 8NH_3)$. $P_2O_5$ and $H_2SO_4$ are acidic and will react with $NH_3$ to form ammonium salts. Therefore,$CaO$ (quicklime) is the only suitable basic drying agent among the given options.

Which of the following is the most suitable drying agent for ammonia gas?

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