A solution of sulphur dioxide in water reacts with sulphuric acid precipitating sulphur. Here sulphur dioxide acts as

Options :
  1. as oxidizing agent
  2. a reducing agent
  3. an acid
  4. a catalyst

Answer and Explanation :-

Answer: Option 1


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-Michel Foucault Madness and Civilization: A History of Insanity in the Age of Reason