The gas leaked from a storage tank of the Union Carbide plant in the Bhopal gas tragedy was:

The structure of the functional group of a secondary amide is:

Given below are two statements:
Statement $I$ : Aminobenzene and aniline are same organic compounds.
Statement $II$ : Aminobenzene and aniline are different organic compounds.
In the light of the above statements,choose the most appropriate answer from the options given below:

The Bhopal gas tragedy of $1984$ was caused by

Which of the following is not a primary amine?

The $IUPAC$ names of the following compounds $A$ and $B$ are: