A) S and \[Cl\]
B) N and S
C) N
D) S
Correct Answer: B
Solution :
Acidified sodium fusion extract on addition of ferric chloride solution gives blood red colouration, which confirms the presence of N and S. \[3NaCNS+aq\,.\,FeC{{l}_{3}}\xrightarrow{{}}\underset{\begin{smallmatrix} red \\ (ferric\text{ }thiocyanide) \end{smallmatrix}}{\mathop{Fe{{(CNS)}_{3}}}}\,+3NaCl\]
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