KMnO4 can be prepared from K2MnO4 as per reaction,
The reaction can go to completion by removing OH- ions by adding
1. HCl
2. KOH
3. CO2
4. SO2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology10 gm CaCO3 is taken in a one litre container. The active mass of CaCO3 is:
1. 0.1
2. 1
3. zero
4. 10
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