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Cambridge IGCSE Chemistry practice

Paper 4 structured question: Simple molecules and covalent bonds

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Simple molecules and covalent bonds

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Paper 4Theory (Extended)2 marks

Electrical conductivity of simple molecular compounds

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Electrical Conductivity

Simple molecular compounds do not conduct electricity due to the absence of free-moving charged particles.

  1. a

    Explain why simple molecular compounds do not conduct electricity.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 4 structured question: Simple molecules and covalent bonds

Paper 4Theory (Extended)1 marks

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Simple Molecular Compounds

Simple molecular compounds are characterized by their low melting and boiling points and poor electrical conductivity.

  1. a

    State one property of simple molecular compounds related to their melting points.

    Aim for approximately 1 distinct marking point.

    [1]