<prompt> The gas responsible for Bhopal gas tragedy was ?Methyl isocyanatePotassium isothiocyanateSodium isothiocyanateEthyl Isothiocyanate  <response>: .Methyl isocyanate is an organic compound with the molecular formula CH3NCO. Synonyms are isocyanatomethane, methyl carbylamine, and MIC. Methyl isocyanate is an intermediate chemical in the production of carbamate pesticidesMethyl isocyanate MIC will react with water, or in the presence of catalysts such as sodium hydroxide, sodium methoxide, triphenylarsine, triethyl phosphine. ref;park;s textbook of preventive and social medicine,22 nd edition,pg no 