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>> $Diphenyl amine gives a deep blue colour$

Question

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

This question has multiple correct options

A

$F e^{3 +}$

B

$N O_{3}^{-}$

C

$N O_{2}^{-}$

D

$C l^{-}$

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Solution

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Correct options are A) , B) and C)

Oxidizing agents like $F e^{3 +}, N O_{3}^{-}$ and $N O_{2}^{-}$ give deep blue colour with diphenyl amine.

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