What is the oxidation number of oxygen in KO_2 ?

MHT CET 2026 Chemistry question

What is the oxidation number of oxygen in ?

Answer: (B)

is potassium superoxide, containing the superoxide ion . Potassium is +1, so the sum of oxidation numbers of the two oxygens is : $+1 + 2x = 0 ⇒ x

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Question ID VK-099358