Identify the product in the following reaction. 3,4,5-tribromoaniline [(ii) ,H_3PO_2] (i) ,Diazotisation ?

MHT CET Chemistry question

Identify the product in the following reaction. 3,4,5-tribromoaniline ?

(A)3,4,5-tribromobenzene
(B)1,2,3-tribromobenzeneCorrect
(C)2,4,6-tribromobenzene
(D)3,4,5-tribromonitrobenzene

Answer: (B)

Solution

Diazotisation converts NH2 to N2+ and H3PO2 then replaces it by H, leaving three adjacent Br atoms, i.e. 1,2,3-tribromobenzene (the locants 3,4,5 are renumbered as

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Question ID VK-082501