P-Block Elements Ques 310
Question: The chemical used for cooling in refrigeration is
[CPMT 1981, 88]
Options:
A) $ CO_2 $
B) $ NH_4OH $
C) $ NH_4Cl $
D) Liquid $ NH_3 $
Show Answer
Answer:
Correct Answer: D
Solution:
$ NH_3 $ is highly volatile compound. When vapourized, liquid ammonia causes intense cooling. Hence used as a coolant in ice factories and cold storages.
