Which of the following chemicals are used to manufacture methy1 isocyanate that caused Bhopal Tragedy ?
Methylamine
(ii) Phosgene
(iii) Phosphine (iv) Dimethylamine .

Options

A. (i) and (iii)
B. (iii) and (iv)
C. (i) and (ii)
D. (ii) and (iv)

Answer

C

Explanation

Methyl isocyanate is industrially prepared by the action of methyl amine with phosgene.
`CH_(3)NH_(2)+COCl_(2)overset(-HCl)rarr[CH_(3)NH-CO-Cl]overset(Delta)underset(-HCl)rarrunderset("methyl isocyanate")(CH_(3)-N-=C=O)`