SubjectCover

Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section

The properties of oxides

19 practice questions

Start practising (8 questions)

Practice questions

1–8 of 8 · Easy

  1. Question 1

    1 mark · Easy

    State whether sodium oxide is an acidic oxide or a basic oxide.

    Answer and see the solution →

  2. Question 2

    3 marks · Easy

    The table shows information about two oxides.

    (a)

    Name the type of element (metal or non-metal) that forms magnesium oxide.

    [1 mark]
    (b)

    State whether magnesium oxide reacts with acids, with alkalis, or with both.

    [1 mark]
    (c)

    Give the general property (acidic or basic) of non-metal oxides.

    [1 mark]
    Answer and see the solution →

  3. Question 3

    2 marks · Easy

    Explain why carbon dioxide is classed as an acidic oxide. Give a reason for your answer.

    Answer and see the solution →

  4. Question 4

    3 marks · Easy

    The table shows solutions formed by dissolving some oxides in water:

    Solutions of different oxides
    OxideSolution pH
    Aluminium oxide7
    Sulfur dioxide3
    Potassium oxide13
    (a)

    Which oxide forms a neutral solution? Give its pH.

    [1 mark]
    (b)

    State whether sulfur dioxide is a metal oxide or a non-metal oxide.

    [1 mark]
    (c)

    Explain why potassium oxide gives a pH of 13.

    [1 mark]
    Answer and see the solution →

  5. Question 5

    1 mark · Easy

    Give an example of an acidic oxide.

    Answer and see the solution →

  6. Question 6

    3 marks · Easy

    This question is about oxides and their properties.

    (a)

    State whether iron(III) oxide is likely to be acidic, basic or neutral.

    [1 mark]
    (b)

    Give the type of element which forms carbon monoxide.

    [1 mark]
    (c)

    State a general property of metal oxides.

    [1 mark]
    Answer and see the solution →

  7. Question 7

    2 marks · Easy

    A student burns 2.0 g of sodium in oxygen to form sodium oxide ( ). Sodium oxide is then added to water, and a solution forms that turns universal indicator blue.

    Calculate the mass of sodium oxide formed (using Ar: Na = 23, O = 16), and state whether sodium oxide is an acidic or basic oxide.

    Answer and see the solution →

  8. Question 8

    2 marks · Easy

    When 1.6 g of phosphorus is burned in excess oxygen, phosphorus(V) oxide ( ) is formed as a white solid.

    Calculate the mass of oxygen that reacts (Ar: P = 31, O = 16), and state whether phosphorus(V) oxide is acidic or basic.

    Answer and see the solution →