Chemistry - Redox Reactions - Oxidation states/numbers - Assigning Oxidation States

5 worked examples of finding oxidation states. Example 1: 'Find oxidation state of S in H₂SO₄.' Rules applied: H = +1 (×2 = +2), O = -2 (×4 = -8), total = 0. So S + 2 + (-8) = 0 → S = +6. Example 2: 'Find Mn in KMnO₄.' K = +1, O = -2(×4 = -8), total = 0. So 1 + Mn + (-8) = 0 → Mn = +7. Example 3: 'F