Potassium when heated strongly in oxygen, it forms

K_{2} O

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K O_{2}

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K_{2} O_{2}

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K O_{3}

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Solution

The correct option is B $K O_{2}$
Whenever potassium is heated strongly in a good supply of air or oxygen, it forms $K O_{2}$ . $K O_{2}$ is superoxide.
$K_{2} O$ is obtained by heating potassium nitrate with potassium.
Controlled oxidation of potassium in excess air or oxygen at 300

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Potassium when heated strongly in oxygen forms:

M g C l_{2} \cdot 6 H_{2} O

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