What is the product formed when ethylamine is oxidized with acidic $KMnO_4$?

Which substance is responsible for the characteristic smell of mustard oil?

Identify the compound from the following having the highest basic strength.

Carbylamine is formed from aliphatic or aromatic primary amine via which of the following intermediates?

In the following reaction sequence,$C_2H_5NH_2$ $\xrightarrow{HNO_2} A$ $\xrightarrow{PCl_5} B$ $\xrightarrow{NH_3} C$,the compound '$C$' is

What is the major product of the following reaction?
$C_6H_5NO_2 \xrightarrow{Zn / NH_4Cl} \text{Product}$