Latest IIT-JEE Aptitude Question SOLUTION: 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 wi
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+