Which of the following amines give mustard oil smell with $\mathrm{H}\mathrm{g}\mathrm{C}{\mathrm{l}}_2+\mathrm{C}{\mathrm{S}}_2$ ?

(I) Aniline

(II) Diethyl amine

(III) P-toluidine

(IV) N,N-Diethyl propanamine

• A

  (I) & (II)
• B

  (II) & (IV)
• C

  (II) & (III)
• Correct answer
  D

  (I) & (III)

Solution

Primary amine such as aniline and P-toluidine gives mustard oil test.

Hence, the correct answer is option: 'D'.