UPSC Combined Geo-Scientist, Mains · 2020 · Mains Paper III
Q5(c). Balancing MnO₄⁻ + VO²⁺ in acid
Question
Derive a balanced chemical equation for the redox reaction MnO₄⁻ + VO²⁺ → Mn²⁺ + V(OH)₄⁺ in acidic medium.
Model answer
The free solution for 2020 answers questions 1, 2, 4, 6, 8 and 10, the ones picked in its time plan. This part is not answered on the site yet. New answers are announced on Telegram.
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Coversredox balancingpermanganatevanadylion-electron method
All parts of Question 5
- 5(a) Al and Mg from ignition of their oxinates5 marks
- 5(b) Spectrophotometry of one- and two-component samples10 marks
- 5(c) Balancing MnO₄⁻ + VO²⁺ in acid5 marks
- 5(d) F-test and t-test: voltammetry versus FIA10 marks