Ammonia can be dried by

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(C) Ammonia $(NH_3)$ is a basic gas. To dry a gas,the drying agent must not react with the gas. $H_2SO_4$ is an acid and reacts with $NH_3$ to form $(

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$CaO$

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(C) Ammonia $(NH_3)$ is a basic gas. To dry a gas,the drying agent must not react with the gas. $H_2SO_4$ is an acid and reacts with $NH_3$ to form $(NH_4)_2SO_4$. $P_4O_{10}$ is an acidic oxide and reacts with $NH_3$. $CaCl_2$ forms an adduct with $NH_3$ $(CaCl_2 \cdot 8NH_3)$. $CaO$ (quicklime) is a basic drying agent and does not react with basic $NH_3$ gas,making it the suitable choice for drying.

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