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1 markPolymers

CSEC Chemistry · May/June 2009 · Paper 2 · Question 3(c)(ii)b)

Polyamides of type B can undergo both acid hydrolysis in the laboratory and enzyme hydrolysis in the body.

State ONE difference in the reaction conditions required for acid hydrolysis when compared to enzyme hydrolysis of polyamides.

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Other parts of this question

  1. 3(a)(i)Name the property of compounds upon which fractional distillation is based.[1 mark]
  2. 3(a)(ii)Name the lightest and heaviest fractions that are usually obtained from the fractional distillation of crude oil. Lightest fraction: Heaviest fraction:[2 marks]
  3. 3(a)(iii)State ONE use of EACH of the fractions named in (a) (ii) above. Lightest fraction: Heaviest fraction:[2 marks]
  4. 3(b)(i)Draw the structure of the product formed when Compound A reacts with EACH of the following: Bromine Sodium[2 marks]
  5. 3(b)(ii)Draw the partial structure of the polymer formed when Compound A undergoes ADDITION polymerisation with other molecules of A. Use three molecules of A in the…[2 marks]
  6. 3(c)(i)Name the type of polymerisation process involved in the formation of B.[1 mark]
  7. 3(c)(ii)a)Draw the monomer formed when B undergoes acid hydrolysis.[2 marks]

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