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Which of the following cannot be formed from Sandmeyer reaction on benzenediazonium chloride?

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in Chemistry – Class 12 by (188k points)
Which of the following cannot be formed from Sandmeyer reaction on benzenediazonium chloride?

(a) Chlorobenzene

(b) Bromobenzene

(c) Iodobenzene

(d) Benzonitrile

The question was posed to me in my homework.

My enquiry is from Diazonium Salts Chemical Reactions in section Amines of Chemistry – Class 12

1 Answer

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Correct answer is (c) Iodobenzene

Easy explanation: Sandmeyer reaction is used for the introduction of chloride, bromide and cyanide ions only in the benzene ring of diazonium salts, by replacing the diazo group. Iodobenzene is produced by another reaction.

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