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Q.

When primary amine is heated with ${CS}_{2}$ in the presence of excess of ${HgCl}_{2}$ It gives isothiocyanate. This reaction is called

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a

Hofmann elimination reaction

b

Perkin condensation

c

Hoffmann mustard oil reaction

d

Hoffmann bromamide reaction

answer is C.

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Detailed Solution

The given reaction is known as Hoffmann mustard oil reaction.

$R - {NH}_{2} + {CS}_{2} + {HgCl}_{2} \to R - N = C = S + HgS + 2 HCl$

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