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

Reactivity Series

163 practice questions

Topics covered

Practice questions

21–30 of 66 · Easy

  1. Question 21

    3 marks · Easy

    The table shows the results of placing samples of metals in solutions of metal nitrates:

    Results of Displacement Experiments
    Metal addedMetal nitrate solutionObservation
    AluminiumSilver nitrateGrey crystals form
    CopperZinc nitrateNo change
    IronCopper(II) nitrateReddish-brown deposit
    MagnesiumLead(II) nitrateGrey solid forms
    (a)

    Write the ionic equation for the reaction when aluminium is added to silver nitrate solution.

    [1 mark]
    (b)

    Which metal does not react in its experiment? Explain why based on the data.

    [2 marks]
    Answer and see the solution →
  2. Question 22

    1 mark · Easy

    Give the formula of the spectator ion present when potassium metal reacts with sodium chloride solution.

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  3. Question 23

    3 marks · Easy

    Chromium is added to copper(II) sulfate solution. Chromium displaces copper from the solution.

    (a)

    Write the ionic half-equation for the reduction step.

    [2 marks]
    (b)

    Write the ionic half-equation for the oxidation step.

    [1 mark]
    Answer and see the solution →
  4. Question 24

    2 marks · Easy

    In a reaction between calcium metal and tin(II) sulfate solution, calcium displaces tin.

    State which substance is the oxidising agent and which is the reducing agent, giving your answer in terms of electron transfer.

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  5. Question 25

    1 mark · Easy

    State the general word equation for the reaction of a metal with cold water.

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  6. Question 26

    3 marks · Easy

    Potassium reacts vigorously when added to a trough of cold water.

    (a)

    Describe two observations you would make during this reaction.

    [2 marks]
    (b)

    Name the gas produced in this reaction.

    [1 mark]
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  7. Question 27

    2 marks · Easy

    Explain, using the reactivity series, why gold does not react with either cold water or steam.

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  8. Question 28

    3 marks · Easy

    The table shows some metals and their reactions with water or steam:

    MetalReacts with cold water?Reacts with steam?
    PotassiumYesNo
    CalciumYesNo
    MagnesiumNoYes
    CopperNoNo
    (a)

    Identify one metal from the table that reacts only with steam but not with cold water.

    [1 mark]
    (b)

    State the general word equation for the reaction of this metal with steam.

    [1 mark]
    (c)

    Name the gas produced in this reaction.

    [1 mark]
    Answer and see the solution →
  9. Question 29

    1 mark · Easy

    State one observation when calcium reacts with cold water.

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  10. Question 30

    3 marks · Easy

    Zinc is heated in steam according to the equation:

    (a)

    Name two products formed in this reaction.

    [2 marks]
    (b)

    State the colour of zinc oxide when it has just formed (hot).

    [1 mark]
    Answer and see the solution →