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NEET levelSingle correct optionDifficulty 1 of 3nc075

The group that links the two aromatic rings in azo dyes is

A $- NH - NH X^{-}$
B $- N (O) = N X^{-}$
C $- N = N -$
D $- CH = N -$

Answer: C

Azo compounds contain the

- N = N -

group joined to two aryl groups.

- NH - NH X^{-}

is the hydrazo group,

- N (O) = N X^{-}

the azoxy group and

- CH = N -

an imine (Schiff base) group.

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