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Karnataka Board PUCPUC Science 2nd PUC Class 12

Identify the compound Y in the following reaction. →273−278KNANOX2+HCl →CuX2 ClY+NX2

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Question

Identify the compound Y in the following reaction.

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MCQ
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Solution

Explanation:

When a primary aromatic amine, dissolved or suspended in cold aqueous mineral acid and treated with sodium nitrite, a diazonium salt is formed. When this freshly prepared diazonium salt is mixed with cuprous chloride, diazonium group is replaced by −Cl.

Then chlorobenzene is formed which is Y in this reaction.

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Chapter 10: Haloalkanes and Haloarenes - Exercises [Page 134]

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NCERT Exemplar Chemistry Exemplar [English] Class 12
Chapter 10 Haloalkanes and Haloarenes
Exercises | Q I. 3. | Page 134

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