Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 General Science Chemistry Periodic Table

दिलेल्या अभिक्रियेमध्ये, Mn ची ऑक्सिडन स्थिति आहे

3MnO4 2- + 4H+ → 2MnO4- + MnO2 + 2H2O

1
केवळ +3, +4, +7
2
केवळ +2, +4, +7
3
केवळ +4, +6, +7
4
केवळ +4, +5, +7
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