Ni^ 2+ , in traces, can be tested using

JEE Advanced Chemistry question

, in traces, can be tested using

(A)Sodium nitroprusside
(B)Dimethyl glyoximeCorrect
(C)Ammonium sulphocyanide
(D)Potassium ferrocyanide

Answer: (B)

Solution

reacts with dimethylglyoxime (DMG) in ammoniacal medium to give a bright, insoluble cherry-red/rose-pink precipitate of bis(dimethylglyoximato)nickel(II), — a highly sensitive and selective

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Question ID VK-159645