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S & P Block Elements Oxides of Alkali Metals

1

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In the reaction M + O₂ → MO₂, where MO₂ is a superoxide, the metal M is:

Verified Answer & Explanation⌄

Correct Answer: C) K

Concept Explanation

The large K⁺ ion stabilizes the large superoxide ion O₂⁻, so potassium readily forms KO₂.

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