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COMEDK2024ChemistryRedox Reactions

Name of the gas that can readily decolourise acidified KMnO ₄ solution is

Options

  1. ACO ₂
  2. BSO ₂
  3. CNO ₂
  4. DP ₂ O ₅

Correct answer

B. SO ₂

Step-by-step solution

Sulphur dioxide is the gas that can readily decolourised acidified KMnO ₄ solution. The complete reaction is as follows,

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