What is the oxidation state of manganese in potassium permanganate ()?
Answer and explanation
Correct answer: D. +7
- Step 1: Potassium has oxidation state and each oxygen has (four oxygens contribute ).
- Step 2: In the neutral compound: .
Answer
+7.
Why not the others: '+2' is the reduced form ; '+4' is the state in manganese dioxide (); '+6' is the state in manganate ().
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