p-Block elementsEasy
Question
Ammonia gas can be dried by :
Options
A.conc. H2SO4
B.P2O5
C.CaCl2
D.quick lime
Solution
Except CaO, NH3 reacts with all other dehydrating agents.
2NH3 + H2SO4 → (NH4)2SO4
CaCl2 + 4NH3 → CaCl4 . 4NH3
P4H10
4HPO3 
4NH4PO3
Meta phosphoric acid
2NH3 + H2SO4 → (NH4)2SO4
CaCl2 + 4NH3 → CaCl4 . 4NH3
P4H10
4HPO3 4NH4PO3 Meta phosphoric acid
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