A) \[CaC{{l}_{2}}\]
B) \[Conc.\,{{H}_{2}}S{{O}_{4}}\]
C) \[{{P}_{2}}{{O}_{5}}\]
D) quick lime
Correct Answer: D
Solution :
Ammonia is dried over quick lime \[(CaO)\]. It cannot be dried over cone. \[{{H}_{2}}S{{O}_{4}},{{P}_{2}}{{O}_{5}}\] and \[CaC{{l}_{2}}\]because it reacts with these compounds.
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