a. Explain the laboratory method of preparation fo p-bromoacetanilide from acetailide.
b. Mention a general test for the following:
(i) Carboydrates
(ii) Oils and fats.

Mention a general test for the following: Oils and fats

(a) In the preparation of p - bromo acetanlllde from acetanilide. (i) Name the regents used . (ii) Write the equation for the reaction involved . (iii) What is the colour of the product obtained .

i) Explain the preparation of phenol from cumene. ii) Complete the reaction :

(a) What is meant by polymerisation? Name the monomer used in the preparation of Polyvinyl Chloride (PVC). (b) Write partial structure of the following polymers. (i) Poly propene (ii) Teflon (iii) Neoprene

Study the given pedigree chart showing the pattern of blood group inheritance in a family (a) Given the genotype of the following: (i)Parents (ii) The individual 'X' in second generation (b) State the possible blood groups of the individual 'Y' in third generation (c) How does the inheritance of this blood group explain codominance?

(a) Explain the preparation of Buna-N with equation. Name the monomer present in the following polymer (i) Poly vinyl chloride (ii) Natural rubber. ( c ) Give an example of bio-degradable polymer.

(a) Write one equation each for decomposition reaction when energy is supplied in the form of : (i) heat , (ii) light. (b) Account for the following : (i) Paint is applied on iron articles. (ii) Oil and fat containing food items are flushed with nitrogen . (iii) When an iron nail kept in copper sulphate solution, blue colour of the solution fades and iron nail becomes brownish .