MCQ
The chemical used for cooling in refrigeration is
  • A
    $C{O_2}$
  • B
    $N{H_4}OH$
  • C
    $N{H_4}Cl$
  • Liquid $N{H_3}$

Answer

Correct option: D.
Liquid $N{H_3}$
d
(d)$N{H_3}$ is highly volatile compound. When vapourized, liquid ammonia causes intense cooling. Hence used as a coolant in ice factories and cold storages.

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