1.

Identify the most suitable reagent for converting benzene diazonium chloride to chlorobenzene.

A. CuCl<sub>2</sub>/HCl
B. Cu<sub>2</sub>Cl<sub>2</sub>/HCl
C. CuSO<sub>4</sub>/HCl
D. CuSO<sub>2</sub>/H<sub>2</sub>SO<sub>4</sub>
Answer» C. CuSO<sub>4</sub>/HCl


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