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Question: The blood red colour in the combination test of nitrogen and sulphur in organic compound is due to t...

The blood red colour in the combination test of nitrogen and sulphur in organic compound is due to the formation of :

A

Ferric sulpho cyanide

B

Ferric acetate

C

Ferrous sulpho cyanide

D

Ferric cyanide

Answer

Ferric sulpho cyanide

Explanation

Solution

Na + C+N+SC + N + S \longrightarrow NaCNS

from organic compound Sod. Sulphocyanide

3NaCNS + Fe+3 \longrightarrow Fe(CNS)3 + 3Na+

(blood red)