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Nitrogen

Diphenyl amin...

Question

Diphenyl amine gives a deep blue colour with a solution of :

A

F e^{3 +}

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B

N O_{3}^{-}

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C

N O_{2}^{-}

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D

C l^{-}

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Solution

The correct options are
A $F e^{3 +}$
B $N O_{3}^{-}$
C $N O_{2}^{-}$
Oxidizing agents like $F e^{3 +}, N O_{3}^{-}$ and $N O_{2}^{-}$ give deep blue colour with diphenyl amine.

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