SubjectCover

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

Other alkaline solutions

18 practice questions

Start practising (3 questions)

Practice questions

1–3 of 3 · Hard

  1. Question 1

    2 marks · Hard

    State the name and the full chemical formula of the ion that is present in all acidic solutions and causes acidity.

    Answer and see the solution →

  2. Question 2

    5 marks · Hard

    The following table shows two acids and their reactions in water.

    AcidEquation in water
    Acid A
    Acid B
    (a)

    For Acid A, explain what the presence of H^+ ions in solution tells you about the nature of the solution.

    [1 mark]
    (b)

    For Acid B, how many moles of H^+ ions are formed from 1 mole of HB_2?

    [1 mark]
    (c)

    Both Acid A and Acid B are added separately to water to make solutions.

    Describe in terms of ions what occurs in each solution and which property they share.

    [2 marks]
    (d)

    Explain, using one example from above, what is meant by the 'replaceable hydrogen' in acids.

    [1 mark]
    Answer and see the solution →

  3. Question 3

    2 marks · Hard

    Name one metal compound (other than ammonia or sodium hydroxide) that makes water alkaline and write a balanced equation to show the formation of hydroxide ions in this solution.

    Answer and see the solution →