CH-1273
Air pollutants
Chemistry · Secondary 4 · Easy · Air pollutants
Sulfur dioxide is bubbled into acidified potassium manganate(VII) solution. What is observed, and why?
- The solution stays purple, because sulfur dioxide is acidic.
- The solution turns from purple to colourless, because sulfur dioxide is an oxidising agent.
- The solution turns from purple to colourless, because sulfur dioxide is a reducing agent.
- The solution turns from orange to green, because sulfur dioxide is a reducing agent.
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