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JEE Main levelOne or more correct optionsDifficulty 2 of 3nc064

Benzenediazonium chloride reacts with the reagents listed. Select all the pairs in which the stated product is correct.

A $SnCl X_{2} / HCl$ gives phenylhydrazine
Bwarm water gives phenol
C $H X_{3} PO X_{2}$ gives benzene
D $CuCN / KCN$ gives benzylamine

Answer: A, B, C

H X_{3} PO X_{2}

replaces

N X_{2} X^{+}

by H, warm water gives phenol, and

SnCl X_{2} / HCl

(or

Na X_{2} SO X_{3}

) reduces the diazonium group to

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

.

CuCN / KCN

gives benzonitrile,

C X_{6} H X_{5} CN

, not benzylamine; the nitrile would need a further reduction.

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