Monday, December 17, 2007

Past JEE Questions Ch.18 Exercises in Inorganic Chemistry

JEE Question 2007 paper II

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 give rise to a deep blue crystalline precipitate. The metal ion is

(A) Pb2^+
(B) Hg2^+
(C) Cu2^+
(D) Co2^+

Answer: B

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