In the redox reaction of SO2 with KMnO4 for an acidic medium:
Correct answer: B. SO2 reduces KMnO4
- A. SO2 oxidizes KMnO4
- B. SO2 reduces KMnO4
- C. KMnO4 is inert in acidic medium
- D. SO2 can't undergo redox reaction
Explanation
Option B is correct as SO2 is a strong reducing agent and KMnO4 is a strong oxidising agent. SO2 reduces Mn7+ in KMnO4 to Mn2+ and gets oxidised itself from S4+ to S6+.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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