In the reaction $M + O_{2} ⟶ M O_{2}$ (super oxide) the metal is :

L i

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N a

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K

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B a

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Solution

The correct option is B $K$
In the reaction $M + O_{2} ⟶ M O_{2}$ (super oxide) the metal is K.
Potassium superoxide is produced by burning molten potassium in an atmosphere of oxygen
$K + O_{2} \to K O_{2}$ .
Hence option C is correct.

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