Which of the following reagent will react with ethyl amine followed by thermal decomposition with mercuric chloride to form a compound with characteristic smell like mustard oil.

C S_{2}

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S O_{2}

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H_{2} S

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N a_{2} S

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Solution

The correct option is B $C S_{2}$
Carbon disulphide will react with ethyl amine followed by thermal decomposition with mercuric chloride to form ethyl isothiocyanate with characteristic smell like mustard oil.
$C H_{3} C H_{2} N H_{2} + S = C = S Δ - \to C H_{3} C H_{2} N H - C (S) - S H H g C l_{2} - --- \to Δ C H_{3} C H_{2} - N = C = S + H g S + 2 H C l$

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