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Cambridge IGCSE Chemistry practice

Paper 4 structured question: Polymers

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Polymers

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Paper 4Theory (Extended)1 marks

Polymer Chemistry

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Formation of Polyamides and Polyesters

Polyamides and polyesters are two types of condensation polymers formed from specific monomers. Polyamides are created from a dicarboxylic acid and a diamine, while polyesters are formed from a dicarboxylic acid and a diol. The structures of these polymers can be analyzed to identify their repeating units.

  1. a

    State the repeating unit of a polyester.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 4 structured question: Polymers

Paper 4Theory (Extended)3 marks

Description

Formation of Polyamides and Polyesters

Polyamides and polyesters are two types of condensation polymers formed from specific monomers. Polyamides are created from a dicarboxylic acid and a diamine, while polyesters are formed from a dicarboxylic acid and a diol. The structures of these polymers can be analyzed to identify their repeating units.

  1. b

    Explain how the structure of a polyamide differs from that of a polyester.

    Aim for approximately 3 distinct marking points.

    [3]