Chemistry · Oct / Nov 2025 · Paper 11 · Question 17
5070The characteristic properties of acids and bases
Which statement is correct?
- AEthanoic acid is a weak acid because when it is added to excess alkali not all of the ethanoic acid reacts.
- BEthanoic acid is a weaker acid than sulfuric acid because a smaller proportion of its molecules dissociate in aqueous solution.
- CHydrochloric acid is a stronger acid than ethanoic acid because hydrochloric acid always has a higher pH than ethanoic acid.
- DSulfuric acid is a strong acid because it produces two hydrogen ions for every molecule that dissociates.
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Correct answer: B. Ethanoic acid is a weaker acid than sulfuric acid because a smaller proportion of its molecules dissociate in aqueous solution.
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