In the Lassaigne’s test for nitrogen in ...

In the Lassaigne’s test for nitrogen in an organic compound, the Prussian blue colour is obtained due to the formation of:
(a) `Na_(4)[Fe(CN)_(6)]` (b) `Fe_(4)[Fe(CN)_(6)]_(3)` (c) `Fe_(2)[Fe(CN)_(6)]` (d) `Fe_(3)[Fe(CN)_(6)]_(4)`

A

`Na_(4)[Fe(CN)_(6)]`

B

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

C

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

D

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

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The correct Answer is:

B

is the correct answer.

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