s-Block ElementsHard
Question
Crude common salt becomes damp on keeping in air because :
Options
A.It is hygroscopic in nature.
B.It contains MgCl2 and CaCl2 as impurities which are deliquescent in nature.
C.(A) and (B) both.
D.none.
Solution
(B) On account of higher polarising power, Mg2+ and Ca2+ have higher degree of hydration. So MgCl2 and CaCl2 form hydrated salts.
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