MEDIUMMCQ SINGLEJEE Advanced ChemistryInorganic Chemistryp -Block Elements (group 15-18)Previous Year Questions

Name the gas that can readily decolourise acidified KMnO₄ solution. (NEET 2017)

A.CO₂

B.SO₂✓ Correct

C.NO₂

D.P₂O₅

Explanation

SO₂ gas can readily oxidise acidified KMnO₄ solution because KMnO₄ is an oxidising agent that easily oxidises SO₂. 2 2 4 2 2 4 2MnO 5SO 2H O 2Mn 5SO 4H →

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