WJEC A Level Chemistry
WJEC A Level Chemistry 4.3 Alcohols and Phenols Exam Questions
Free WJEC A Level Chemistry exam questions on 4.3 Alcohols and Phenols, with mark schemes. Covers reactions of alcohols, the acidity and reactions of phenol.
4.3 Alcohols and Phenols exam questions
1 question pack of real past exam questions with its mark scheme. Answer every question without notes, then mark your answers line by line against the mark scheme.
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WJEC A Level Chemistry Flashcards (Anki & Quizlet)
Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Use them on Anki or Quizlet, then test yourself with the questions on this page.
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About WJEC A Level Chemistry 4.3 Alcohols and Phenols
This topic extends alcohol chemistry and introduces phenol.
What you need to know
- Alcohols Oxidation, esterification, reaction with sodium and halogenation.
- Phenol Weakly acidic, reacts with NaOH but not carbonates.
- Ring reactivity Phenol reacts with bromine water to give a white precipitate.
- Tests Distinguishing alcohols and phenols with FeCl₃ and bromine water.
Common mistakes in 4.3 Alcohols and Phenols
- Saying phenol reacts with sodium carbonate.
- Mixing up the acidity order of water, ethanol and phenol.
- Forgetting the white precipitate with bromine water.
Try three 4.3 Alcohols and Phenols exam-style questions
1. Explain why phenol is more acidic than ethanol. (2 marks)
Show the mark scheme answer
The negative charge on the phenoxide ion is delocalised into the ring (1), stabilising it (1).
2. State the observation when bromine water is added to phenol. (1 mark)
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Decolourises and a white precipitate forms.
3. Give a test to distinguish phenol from ethanol. (1 mark)
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Neutral FeCl₃ gives a purple colour with phenol.
4.3 Alcohols and Phenols FAQs
What does Alcohols and Phenols cover?
Further reactions of alcohols and the chemistry of phenol.
Is phenol an alcohol?
No, the OH is attached directly to the benzene ring.
Why is phenol more reactive than benzene?
A lone pair on oxygen increases electron density in the ring.
Revise this topic with flashcards: WJEC A Level Chemistry Flashcards, with mark scheme answers for Anki and Quizlet.
