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JEE Main levelOne or more correct optionsDifficulty 2 of 3nc138

Which of the following conversions of benzenediazonium chloride with the reagent shown are correct?

A $CuCN / KCN$ gives benzonitrile.
B $H X_{3} PO X_{2}$ and water gives benzene.
C $SnCl X_{2} / HCl$ gives phenylhydrazine.
DWarm water gives aniline.

Answer: A, B, C

CuCN/KCN replaces the diazonium group with CN (Sandmeyer), H3PO2 reduces it to hydrogen (benzene), and SnCl2/HCl reduces the diazonium group to the hydrazine,

C X_{6} H X_{5} NHNH X_{2}

. Warm water gives phenol, not aniline, so (D) is wrong.

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