Q.

Acidified sodium fusion extract on addition of ferric chloride solution gives blood red colouration. This confirms the presence of which of the following elements?

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a

Both S and Cl

b

Both N and S

c

Only N

d

Only S

answer is B.

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Detailed Solution

Acidified sodium fusion extract on addition of ferric chloride solution gives blood red colouration, which confirms the presence of N and S both.Na+C+N+S⟶NaSCNFe3++SCN-⟶[Fe(SCN)]2+                                Blood red
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Acidified sodium fusion extract on addition of ferric chloride solution gives blood red colouration. This confirms the presence of which of the following elements?