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Question: Answered & Verified by Expert
Assertion : The $\mathrm{O}-\mathrm{O}$ bond length in $\mathrm{H}_2 \mathrm{O}_2$ is shorter than that of $\mathrm{O}_2 \mathrm{~F}_2$.
Reason : $\mathrm{H}_2 \mathrm{O}_2$ is an ionic compound.
ChemistryHydrogenAIIMSAIIMS 2003
Options:
  • A If both assertion and reason are true and the reason is the correct explanation of the assertion
  • B If both assertion and reason are true and the reason is not the correct explanation of the assertion
  • C If assertion is true but reason is false
  • D If both assertion and reason are false.
Solution:
1625 Upvotes Verified Answer
The correct answer is: If both assertion and reason are false.
$\mathrm{O}_2 \mathrm{~F}_2$ has the similar structure as that of $\mathrm{H}_2 \mathrm{O}_2$ but the $\mathrm{O}-\mathrm{O}$ bond length is shorter in $\mathrm{O}_2 \mathrm{~F}_2$ than in $\mathrm{H}_2 \mathrm{O}_2$. This is due to the high electronegativity of attached F-atoms.

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