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Chemistry · Oct / Nov 2023 · Paper 12 · Question 19

5070The characteristic properties of acids and bases

Which statement is correct?

  1. AA base will react with an ammonium salt to produce a gas that turns damp blue litmus paper red.
  2. BAdding a base to an acidic solution will increase the pH of the solution.
  3. CAqueous sodium hydroxide is an alkali but not a base.
  4. DIn a neutralisation reaction, a base donates a proton to an acid.

As printed in the paper

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Correct answer: B. Adding a base to an acidic solution will increase the pH of the solution.

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