JEE Advanced Chemistry question
A solution of a 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
Answer: (B)
Solution
with KI first gives a red/orange precipitate of , which dissolves in excess KI to form the soluble, colourless complex . Separately,
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