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In lassaigne's test a blue colour is obt...

In lassaigne's test a blue colour is obtained if the organic compound contains nitrogen. The blue colour is due to

A

`K_(4)(Fe(CN)_(6)]`

B

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

C

`Na_(3)[Fe(CN)_(6)]`

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
Prussian blue `Fe_(4)[Fe(CN)_(6)]_(3)`. Is formed.
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  15. In Kjeldahl's method, nitrogen present is estimated as :

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