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Ferric alum gives deep red colour with N...

Ferric alum gives deep red colour with `NH_(4)SCN` due to the formation of `:`

A

`Al(SCN)_(3)`

B

`[Fe(SCN)_(3)]^(-)`

C

`Fe(SCN)_(3)`

D

None of these

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Verified by Experts

The correct Answer is:
3
Ferric alum contains `Fe^(3+)` ion `, Fe^(3+)+3SCN^(-)rarrFe(SCN)_(3)("deep red colouration")`.
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