1.

The compound formed in the positive test for nitrogen with the Lassaigne solution of an organic compound is

Answer»

`Fe_(4)[Fe(CN)_(6)]_(3)`
`Na_(3)[Fe(CN)_(6)]`
`Fe(CN)_(3)`
`Na_(4)[Fe(CN)_(5)NOS]`

SOLUTION :Prussian blue `Fe_(4)[Fe(CN)_(6)]_(3)` is formed in LASSAIGNE test for NITROGEN
`3Na_(4)[Fe(CN)_(6)]+2Fe^(3+) to underset("prussian blue")(Fe_(4)[Fe(CN)_(6)]_(3)+12Na^(+))`


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