In 1984, Bhopal gas tragedy took place because methyl isocyanate reacted with

On December 3, 1984 the exposure of the water to the MIC tank (made possible because of the leaky pressure valve in the jumper line) led to an uncontrolled reaction; a deadly cloud of MIC, hydrogen cyanide, mono methyl amine soon settled over much of Bhopal which lead to death of many.