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GK Test 19 (Static)

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What is the oxidation number of manganese inmanganateion?

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A
+6
💡 Explanation:

The manganate ion is MnO4^2-. Oxygen has -2 oxidation state, so total from 4 oxygens = -8. For ion charge -2: x + (-8) = -2, therefore x = +6.

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