state gov RPSC 2nd Grade Senior Teacher Mock Test Series 2025 Chemistry P - Block

KMnO4 is prepared by

1
Passing Cl2 through K2MnO4 solution
2
Passing O2 through K2MnO4 solution
3
Reacting KOH with HMnO4
4
Fusing KOH with MnO2
5
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