This quiz consists of 10 Acids, Bases and Buffers multiple choice questions for the AQA AS and A-Level Chemistry specification.
The questions are a similar style and level of difficulty to the multiple-choice questions you’ll be given in the AQA Chemistry exams.
Though they’re based on the AQA specification, they’re also appropriate for students studying other exam boards.
Some of these questions are straightforward, some of them are horrible. You need to know how to do all of them by the time the exams come around though, so if there’s anything you can’t do (even if it seems a bit weird) make sure you work backward from the answer and figure out why the answer is what it is.
Acids, Bases and Buffers MULTIPLE CHOICE QUESTIONS
If you’re using this as a test, allow yourself around 11-12 n=minutes to answer these questions. If you’re using them to learn from, feel free to use your textbook to help you.
As always with Chemistry, make sure you have your periodic table and your calculator handy.
1. Which of the following mixtures would act as a buffer?
2. What happens to the Kw and pH of pure water when it is heated?
3. Which of the following acids has the lowest pH?
4. At 30℃ the pH of pure water is 6.92. What is the Kw of pure water at this temperature?
5. Which of the following statements is NOT correct?
6. 0.300 moles of an acid HX dissociated to give 0.00450 moles of H+.
What is the % dissociation of the acid?
7. What is the pH of a solution of H2SO4 with a concentration of 0.200 mol dm-3?
8. What is the pH of the solution that is formed when 90 cm3 of distilled water is added to 10cm3 of 0.5 mol dm-3 HCl?
9. Which of the following compounds is NOT a Bronsted-Lowry acid?
10. In a titration with NaOH the half-neutralisation point of a weak acid was found to be 3.86. What is the Ka of the acid?