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The s-Block Elements
General Characteristics of Alkali Metals
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Concepts tested
- oxidation state in superoxide
All Questions
2022 1 question
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Identify the incorrect statement from the following$KO_2$ is potassium superoxide: $K^+O_2^-$ (superoxide ion $O_2^-$). So the oxidation number of K in $KO_2$ is +1, not +4 – this statement is incorrect.