Why does bromination of aniline, even under very mild conditions give 2, 4, 6- tribromo aniline instantaneously?

An organic compound (A) with IMF C₄H₁₁N, capable of being resolved into optical isomers gives a base soluble product with benzene sulphonyl chloride. What is the structure and IUPAC name of (A)? What happens when this compound (A) is treated with ethanoyl chloride?

How is benzene diazonium chloride obtained?

Explain what is meant by the 'protection of the amino group'.?

Show by means of equations how an amide may be converted into an amine containing the same number of carbon atoms.

Show by means of equations how an amide may be converted into an amine containing one carbon atom less than the amide.