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Identify Z in the given reaction sequence

Option: 1

Image result for bromobenzene


Option: 2


Option: 3


Option: 4

Image result for 1 ,2,3 tribromobenzene


Answers (1)

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As we have learnt,

Sandmeyer’s reaction

When a primary aromatic amine, dissolved or suspended in cold aqueous mineral acid, is treated with sodium nitrite, a diazonium salt is formed. Mixing the solution of freshly prepared diazonium salt with cuprous chloride or cuprous bromide results in the replacement of the diazonium group and leads to the formation of the respective aromatic halide.

Therefore, option (1) is correct.

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chirag

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