Chemistry · Electronic concepts of oxidation and reduction, redox reactions, oxidation number, rules for assigning oxidation number and balancing of redox reactions
is a more powerful reducing agent in:
\( S O_{2} \) is a more powerful reducing agent in:
- A. acidic medium
- B. alkaline medium
- C. neutral medium
- D. None of these
Step-by-step solution
In alkaline medium, the reduction potential of SO4^2-/SO3^2- is more negative (-0.93 V) than in acidic medium (0.17 V), making SO2 (as sulfite) a stronger reducing agent.
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