Which of the following chemicals are used to manufacture methyl isocyanate that caused “Bhopal tragedy”? (JIPMER 2018) (i) Methylamine (iii) Phosgene (iii) Phosphine (iv) Dimethylamine

Methyl isocyanate (CH3NCO) is industrially prepared by the reaction of methyl amine and phosgene (carbonyl chloride). –HCl 3 2 2 3 Phosgene Methyl amine 3 Methyl isocyanate CH NH COCl CH NH – CO – Cl , –HCl CH N C O ->