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Chemistry · May / June 2016 · Paper 11 · Question 18

5070Redox

Which equation does not represent a redox reaction?

  1. A2NH3 + H2SO4 → (NH4)2SO4
  2. B2SO2 + O2 → 2SO3
  3. C2KI + Cl2 → 2KCl + I2
  4. DZn + H2SO4 → ZnSO4 + H2

As printed in the paper

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Correct answer: A. 2NH3 + H2SO4 → (NH4)2SO4

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