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3 marksEthanol

CAPE Chemistry Unit 2 · 2012 · Paper 2 · Question 3(d)(ii)

When beer is exposed to air, it produces a sharp smell and becomes 'sour'. Identify TWO possible compounds responsible for the sharp smell and state the type of reaction responsible.

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Other parts of this question

  1. 3(a)Describe how the concepts of reuse, recycle and reduce can be applied to paper as a solid waste.[3 marks]
  2. 3(b)Suggest TWO ways in which the presence of nuclear waste can affect the terrestrial environment.[2 marks]
  3. 3(c)State the names OR chemical formulae of TWO landfill gases produced by chemical and microbial reactions.[2 marks]
  4. 3(d)(i)Describe, with the aid of equations, the steps involved in the fermentation of sucrose.[5 marks]

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