1.

NH_(4)CI can be replaced by (NH_(4))_(2)SO_(4) in group III.

Answer»


Solution :`NHCI` is used alongwith `NH_(4)OH` in group II to DECREASES ionicsationof `HN_(4)OH` by COMMON the effect (of `NH_(4)^(OPLUS)),(NH_(4))_(2)SO_(4)` is also a source of `NH_(4)^(Theta)` ionbut it common be usedsince`SO_(4)^(2-)` ionwillprecipitate `Zn^(2+),Ca^(2+)Ba^(2+),Sr^(2+)` astheir suilphate HENCE false


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