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4 marksAcidic and Basic Character of Organic Compounds

CAPE Chemistry Unit 2 · 2008 (T&T) · Paper 2 · Question 4(b)

Relative acidities of alcohols and phenols.

With reference to the Lewis structure and resonance forms of the phenoxide ion and the Lewis structure of the alkoxide ion, compare and explain the difference in acidity between alcohols and phenols.

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Other parts of this question

  1. 4(a)Complete Table 1 by predicting the outcome (products or no reaction) for the reactions of ethanol, phenol, and ethanoic acid with Na2CO3, Na, and NaOH.[6 marks]
  2. 4(c)Give TWO characteristics of a homologous series.[2 marks]
  3. 4(d)(i)What is meant by the term 'structural isomerism'?[1 mark]
  4. 4(d)(ii)Using the molecular formula, C3H8O, draw the displayed formulae of TWO structural isomers.[2 marks]

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