Intermediate 2 Chemistry - Unit 3(A)

10 Questions | Total Attempts: 50

SettingsSettingsSettings
Intermediate Quizzes & Trivia

A quiz which assesses the content statements from the SQA Intermediate 2 Chemistry course, Unit 3(a): acids and bases.


Questions and Answers
  • 1. 
    Which of the following substances produce an acid(s) when added to water?
    • A. 

      Sodium chloride

    • B. 

      Hydrogen chloride

    • C. 

      Copper(II) oxide

    • D. 

      Sodium oxide

    • E. 

      Carbon dioxide

    • F. 

      Silicon oxide

    • G. 

      Sodium carbonate

    • H. 

      Sodium sulphate

    • I. 

      Sodium hydroxide

    • J. 

      Ammonia

  • 2. 
    Which of the following substances produce an alkali(s) when added to water?
    • A. 

      Sodium chloride

    • B. 

      Hydrogen chloride

    • C. 

      Copper(II) oxide

    • D. 

      Sodium oxide

    • E. 

      Carbon dioxide

    • F. 

      Silicon oxide

    • G. 

      Sodium carbonate

    • H. 

      Sodium sulphate

    • I. 

      Sodium hydroxide

    • J. 

      Ammonia

  • 3. 
    In pure water, there are no hydrogen or hydroxide ions, only water molecules.
    • A. 

      True

    • B. 

      False

  • 4. 
    An alkaline solution has a pH of above 7 and contains a higher concentration of hydroxide ions than hydrogen ions.
    • A. 

      True

    • B. 

      False

  • 5. 
    Diluting an acid or an alkali brings the pH closer towards 7 because this lowers the concentration of hydrogen and hydroxide ions.
    • A. 

      True

    • B. 

      False

  • 6. 
    In water and aqueous solutions there is an _______________ between hydrogen and hydroxide ions and water molecules.
  • 7. 
    When a reversible reaction is in equilibrium...
    • A. 

      ...the concentrations of reactants and products are equal

    • B. 

      ...the concentrations of reactants and products are constant

  • 8. 
    The concentration (in mol l-1) of a solution made by dissolving 0.25mol of sodium chloride in 500cm3 of water is...
  • 9. 
    Which of the following statements relating to strong and weak acids and bases is/are true?
    • A. 

      Hydrochloric acid and nitric acid are both strong acids

    • B. 

      Ammonia is a strong base

    • C. 

      A strong acid is fully dissociated into ions in aqueous solution

    • D. 

      A strong acid will always have a lower pH than a weak acid

    • E. 

      0.1 mol/l HCl and 0.1 mol/l HNO3 have the same pH

    • F. 

      0.1 mol/l HCl and 0.1 mol/l H2SO4 have the same pH

    • G. 

      Equimolar solutions (equal concentrations) of ethanoic acid and hydrochloric acid will conduct electricity equally well

    • H. 

      Equimolar solutions of ethanoic acid and hydrochloric acid will react at the same rate with magnesium ribbon

    • I. 

      Equimolar solutions of ammonia and sodium hydroxide will have the same pH

    • J. 

      A solution of ammonia has more ions present in it than a solution of sodium hydroxide

  • 10. 
    How many grams of sodium hydrxide are required to make up 500cm3 of a 0.1 mol l-1 solution?
Back to Top Back to top