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Chemistry · Oct / Nov 2016 · Paper 12 · Question 29

5070Reversible reactions and equilibrium

In the manufacture of paper, sulfur dioxide is used to remove the yellow colour from the wood pulp. Which term can be used to describe sulfur dioxide in this process?

  1. Aa bleach
  2. Ba catalyst
  3. Can oxidising agent
  4. Da solvent

As printed in the paper

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Correct answer: A. a bleach

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