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Question: If on adding \(FeCl_{3}\) solution to acidified lassaigne solution, a blood red colouration is produ...

If on adding FeCl3FeCl_{3} solution to acidified lassaigne solution, a blood red colouration is produced, it indicates the presence of

A

S

B

N

C

N and S

D

S and Cl

Answer

N and S

Explanation

Solution

: 3NaCNS+Fe3+→Fe(CNS)3(Bloodred)+3Na+3NaCNS + Fe^{3 +} \rightarrow \underset{(Bloodred)}{Fe(CNS)_{3}} + 3Na^{+}