A solution of metal ion when treated with KI gives a red precipitate w – McqOptions

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1.	A solution of metal ion when treated with KI gives a red precipitate which dissolves in excess KI to give a colourless solution. Moreover, the solution of metal ion on treatment with a solution of cobalt(II) thiocyanate gives rise to a deep blue crystalline precipitate. The metal ion is?
A.	Pb2+
B.	Hg2+
C.	Cu2+
D.	Co2+
Answer» C. Cu2+

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