To a solution of a substance, gradual addition of ammonium hydroxide r – McqOptions

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1.	To a solution of a substance, gradual addition of ammonium hydroxide results in a black precipitate which does not dissolve in excess of \[N{{H}_{4}}OH\]. However, when \[HCl\] is added to the original solution, a white precipitate is formed. The solution contained [BHU 1973]
A.	Lead salt
B.	Silver salt
C.	Mercurous salt
D.	Copper salt
Answer» D. Copper salt

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