Acids and Bases
32 past-paper questions on Acids and Bases · examined 2020–2025.
20258 questions
The pH of dilute ethanoic acid is measured. Aqueous sodium ethanoate is added to the dilute ethanoic acid and the pH is measured again. What is the initial pH of the dilute ethanoic acid and how does it change after the addition?
In a neutralisation reaction, which change in particles occurs?
In a neutralisation reaction, which change in particles occurs?
The diagram shows the change in pH as a strong alkali is added to a weak acid. Which row is correct?
Suggest the name of the ion present in the aqueous solution responsible for the colour change to blue when water is added to the reaction mixture.
Describe the difference between a strong acid and a weak acid.
State the name of the type of oxide that reacts with both acids and alkalis.
Describe the meaning of the term weak in weak acid.
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