- The sum of oxidation states in a neutral molecule is zero. - The sum of oxidation states in a polyatomic ion equals the charge of the ion. - Oxygen typically has an oxidation state of -2, except in peroxides (-1) or superoxides (-1/2). - The oxidation state of an element in its elemental form is zero.
The oxidation state of V in V₂O₇⁻⁴ is _______.
Asked in MPSC CS Prelims 2022 · Topic: Inorganic Chemistry (Chemistry of Transition and Inner-Transition Elements (d-block and f-block))
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