Question detail
Which of the following statements correctly describes a property of carboxylic acids?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Carboxylic acids and derivatives (A-level only)
Question
- A. They have higher boiling points than alcohols of similar molecular weight.
- B. They are strong acids that completely dissociate in water.
- C. They do not form hydrogen bonds.
- D. They are insoluble in polar solvents.
Answer
They have higher boiling points than alcohols of similar molecular weight.
Explanation
The correct option is They have higher boiling points than alcohols of similar molecular weight.. They have higher boiling points than alcohols of similar molecular weight. is the best answer because it directly supports the AQA A-Level Chemistry objective to explain acidic behaviour of carboxylic acids. This reasoning is anchored to Carboxylic acids, esters and acyl derivatives (A-level only) in Carboxylic acids and derivatives (A-level only), and it separates carboxylic acid from similar A-Level ideas rather than relying on a vague recall statement. Other options are weaker if they use the wrong evidence, calculation, mechanism, observation, unit, or conclusion for this subtopic.
Common mistake
Misunderstanding Acidic Behaviour
Students often confuse the acidic behaviour of carboxylic acids with that of alcohols, thinking both have similar properties.
Remember that carboxylic acids contain a carboxyl group (-COOH) which can donate a proton (H+), while alcohols do not have this ability.
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