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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Polymers

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Polymers

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Paper 3Theory (Core)3 marks

Poly(ethene) is widely used in various applications due to its properties.

Description

Poly(ethene) Production

Poly(ethene) is produced from ethene through a process called addition polymerisation. This process involves the breaking of double bonds in ethene molecules, allowing them to link together into long chains.

  1. a

    Explain the process of addition polymerisation in the production of poly(ethene).

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 3 structured question: Polymers

Paper 3Theory (Core)2 marks

Description

Uses of Poly(ethene)

Poly(ethene) is a versatile plastic used in packaging, containers, and many other products due to its flexibility and durability.

  1. a

    Discuss the advantages and disadvantages of using poly(ethene) in everyday products.

    Aim for approximately 2 distinct marking points.

    [2]