Which of the following chemicals are used to manufacture methyl isocyanate that caused "Bhopal Tragedy"? (i) methylamine (ii) phosgene (iii) phosphine (iv) dimethylamine.

• A

  (i) and (iii)
• B

  (iii) and (iv)
• Correct answer
  C

  (i) and (ii)
• D

  (ii) and (iv).

Solution

Methyl isocyanate is industrially prepared by the action of methyl amine with phosgene.

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