Name the monomers and the type of polymerization in each of the following polymers:

(a) Polyester
(b) Bakelite

An organic compound A with molecular formula C₂H₇N on reaction with nitrous acid gives a compound B. B on controlled oxidation gives compound C. C reduces Tollen’s reagent to give silver mirror and D. B reacts with D in the presence of concentrated sulphuric acid to give sweet smelling compound E. Identify A, B, C, D and E. Give the reaction of C with ammonia.

Give balanced equations for the following reactions:
(i) How will you convert ethyl amine to methyl amine?

(ii) What is the effect of denaturation on the structure of proteins?

(iii) Name the nitrogen base residues present in DNA.

44.

Give balanced equations for the following reactions: 
(i) Aniline is treated with nitrous acid and HCl at low temperature.
(ii) Acetyl chloride is treated with ethyl alcohol.
(iii) Formaldehyde is treated with ammonia