IIT-JEE Exam

The number of stereoisomers obtained by bromination of trans-2-butene is
(A) 1 (B) 2
(C) 3 (D) 4

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IIT-JEE Other Question

Consider a titration of potassium dichromate solution with acidified Mohr’s salt solution using diphenylamine as
indicator. The number of moles of Mohr’s salt required per mole of dichromate is
(A) 3 (B) 4
(C) 5 (D) 6 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+