A) \[N{{H}_{3}}\]
B) \[C{{H}_{2}}{{F}_{2}}\]
C) \[CC{{l}_{4}}\]
D) \[C{{H}_{3}}COON{{H}_{4}}\]
Correct Answer: A
Solution :
Liquid ammonia is used as a coolant in ice factories and cold storages.
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