Which of the following reactions uses a diazo | vedclass

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(A) Step $1$: The Sandmeyer reaction is a chemical reaction used to synthesize aryl halides from aryl diazonium salts using copper salts as catalysts.

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$	ext{Sandmeyer reaction}$

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(A) Step $1$: The Sandmeyer reaction is a chemical reaction used to synthesize aryl halides from aryl diazonium salts using copper salts as catalysts.Step $2$: The reaction involves the replacement of the diazonium group $(-N_2^+)$ with a halogen atom (e.g., $-Cl, -Br, -CN$).Step $3$: The Mendius reaction involves the reduction of nitriles to primary amines. The Hofmann rearrangement involves the conversion of an amide to a primary amine with one less carbon atom. The Carbylamine reaction is a test for primary amines using chloroform and base.Step $4$: Therefore, the Sandmeyer reaction is the only one among the options that utilizes a diazonium salt.

Which of the following reactions uses a diazonium salt as a reactant?

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