Question

During sodium extract preparation for Lassaigne's test both N and S present in an organic compound change to:

• A. $NaCN$ and $N{a}_{2}S$
• B. $NaN{H}_2$ and $N{a}_{2}S{O}_4$
• C. $NaSCN$
• D. $NaN{O}_3$ and $N{a}_{2}S$

Answer 1

The correct option is C $NaSCN$

In case, N and S both are present in the organic compound, sodium thiocyanate is formed.
$Na+C+N+S\stackrel{Fuse}{\to }N{a}^{+}SC{N}^{-}$