Why are benzene diazonium salt soluble in water?

Give IUPAC name of sulphanilic acid.

An organic compound 'A' having molecular formula C₂H₇N on treatment with HNO₂ gave an oily yellow substance- Identify A.

What happens when acetamide is reacted with bromine in the presence of potassium hydroxide?

Write the IUPAC name for:
 

Complete the reaction:

Aniline is more soluble in aq. HCl than in water. Explain. 

explain the sandmeyer's reaction?

360.

Describe the preparation of amines from alcohols ?