CAIE A-Level Chemistry A2 32.2.4 Acidities of Water Phenol and Ethanol Topic Practice

CourseCourseConceptConcept

Cambridge International AS & A Level Chemistry (9701)

23. Chemical energetics

24. Electrochemistry

26. Reaction kinetics

28. Chemistry of transition elements

29. An introduction to A Level organic chemistry

30. Hydrocarbons

31. Halogen compounds

32. Hydroxy compounds

32.2.1—Preparation of phenol

32.2.2—Reactions of phenol

32.2.3—Acidity of phenol

32.2.4—Acidities of water, phenol and ethanol

32.2.5—Phenol nitration and bromination conditions

32.2.6—Phenol directing effects

32.2.7—Reactions of phenolic compounds

33. Carboxylic acids and derivatives

34. Nitrogen compounds

35. Polymerisation

36. Organic synthesis

37. Analytical techniques

Practical assessment skills

Mathematical, structural convention and data skills

A-Level/CAIE/Chemistry//A2/Question Bank/32. Hydroxy compounds/32.2 Phenol/32.2.4—Acidities of water, phenol and ethanol

Question 1

[Maximum number: 2]

State and explain the relative acidities of ethanol and phenol.

M1: phenol is more acidic than ethanol because the O-H bond in phenol is weakened/the phenoxide anion is stabilised/ethanol has an electron donating group [1]

M2: p orbital / lone pair of electrons on O can be delocalised over/overlaps with ring [1]

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