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p -Block elements - ll — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryp -Block elements - ll1 Mark
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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