An aqueous solutionof a substance gives a whitepercipitate on treatmen – InterviewSolution

1.	An aqueous solutionof a substance gives a whitepercipitate on treatment with dil ,HCI whichdissolves on heating .When H_(2)S is passedthroughthe hot acidinbg solution a blackprecipitate is obtained .The substances are not :
Answer» `Hg_(2)^(2+)` salt `Cu^(2+)` salt `Ag^(o+)` salt `PB^(2+)` salt Answer :a,b,c

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