A light bluish-green crystaline compound responds to thefollowingtests i. Its aqueous solutiongivesa brownprecipitate orcolourtion with alkline K_(2)[HgI_(4)] solution ii Its aqueous solutiongivesa blue colourwith K_(3)[Fe(CN)_(6)] solution iii Its solution in hydrochloricacidgives a whiteprecipitatewith BaCI_(2) solution Identifythe ions present and suggest the formula ofthecompound

A light bluish-green crystaline compound responds to thefollowingtests

1.	A light bluish-green crystaline compound responds to thefollowingtests i. Its aqueous solutiongivesa brownprecipitate orcolourtion with alkline K_(2)[HgI_(4)] solution ii Its aqueous solutiongivesa blue colourwith K_(3)[Fe(CN)_(6)] solution iii Its solution in hydrochloricacidgives a whiteprecipitatewith BaCI_(2) solution Identifythe ions present and suggest the formula ofthecompound
Answer» Solution :The ions are `NH_(4)^(o+) ,Fe^(2+),SO_(4)^(2-)` FORMULA is `(NH_(4))_(2),SO_(4).FeSO_(4).6H_(2)O` (MOHR's SALT)