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What is the function of sulphur (IV) oxide in the reaction represented by the following ...

What is the function of sulphur (IV) oxide in the reaction represented by the following equation? SO 2(aq) + 2H2S(g) → 3S (s) + 2H 2O (l)
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  • A Dehydrating agent
  • B Oxidising agent
  • C Bleaching agent
  • D Acid
  • E Precipitant
Correct Answer: Option B
Explanation:

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