Chemistry · Analytical Chemistry
For use as an oxidizing agent, KMnO4 should be stored in dark-colored bottles and standardized immediately before use because: i. It is not a primary standard as it is difficult to obtain in high purity and free from traces of MnO2. ii. It is slowly reduced to MnO2, especially in the presence of light or acid.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Only i
- 2Neither i nor ii
- 3Both i and ii✓
- 4Only ii
Correct answer
Both i and ii
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