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Chemistry · Oct / Nov 2023 · Paper 11 · Question 38

5070FormulaeFormulae, functional groups and terminology

Compound X decolourises acidified aqueous potassium manganate(VII). Compound X has the empirical formula C2H5O. Some possible structures of X are shown. [structures 1, 2, 3 and 4] Which structures could be correct for compound X?

  1. A1, 2 and 3
  2. B1 only
  3. C2 and 3 only
  4. D3 and 4

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Correct answer: C. 2 and 3 only

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