Assertion: The $O - O$ bond length in $H_{2} O_{2}$ is shorter than that of $O_{2} F_{2}$ .
Reason: $H_{2} O_{2}$ is an ionic compound.

If both assertion and reason are true and the reason is a correct explanation of the assertion

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If both assertion and reason are true but reason is not a correct explanation of the assertion

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If the assertion is true but reason is false

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If both the assertion and reason are false

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If the assertion is false but the reason is true

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Solution

The correct option is D If both the assertion and reason are false
$H_{2} O_{2}$ is a covalent compound. In $O_{2} F_{2}, O - O$ bond is shorter than in $H_{2} O_{2}$ due to higher electronegativity of $F$ .

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Reason (R) : Under a given deforming force, steel is deformed less than rubber.

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