If on adding FeCl_3 solution to acidified Lassaigne solution, of … - Vidyadip

MCQ

If on adding $FeCl_3$ solution to acidified Lassaigne solution, of organic compound a blood redcolouration is producted, it indicates the presence of

A
$S$
B
$N$
✓
$N$ and $S$
D
$S$ and $Cl$

✓

Answer

Correct option: C.

$N$ and $S$

c
$\mathrm{Na}+\mathrm{S}+\mathrm{C}+\mathrm{N} \rightarrow \mathrm{NaSCN} \quad \stackrel{\mathrm{Fe}^{+3}}{\longrightarrow}$ Blood red

colouration $[NCERT\,XI\,pg.\# \,355]$

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