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p-Amino-N,N-dimethylaniline is added to ...

p-Amino-N,N-dimethylaniline is added to a strongly acidic solution of X. The resulting solution is treated with a few drops of aqueous solution of Y to yield blue colouration due to the formation of methylene blue. Treatment of aqueous solution of Y with reagent potassium hexacyanoferrate (II) leads to the formation of an intense blue precipitate. The precipitate dissolves on excess addition of the reagent. Similarly, the treatment of the solution of Y with the solution of potassium hexacyanoferrate (III) leads to a brown colouration due to the formation of Z.
Q. Compound Y is

A

`Mg_(2)[Fe(CN)_(6)]`

B

`Fe[Fe(CN)_(6)]`

C

`Fe_(4)[Fe(CN)_(6)]_(3)`

D

`K_(2)Zn_(3)[Fe(CN)_(6)]_(2)`

Text Solution

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(B)
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