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AIIMS 2014
Exam
AIIMS
Year
2014
Subject
Chemistry
Chapter
Chemical Bonding and Molecular Structure

AIIMS 2014 · Chemistry · Chemical Bonding and Molecular Structure

Assertion : O_2 has higher bond length than O_3 . Reason: O_3 is...

Assertion : O2\mathrm{O}_2 has higher bond length than O3\mathrm{O}_3. Reason: O3\mathrm{O}_3 is paramagnetic.Assertion : O_2 has higher bond length than O_3 . Reason: O_3 is paramagnetic.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

D. If both assertion and reason are false.

Step-by-step solution

The resonance forms do not show any unshared electrons. Hence, O3\mathrm{O}_3, molecule does not show any paramagnetic properties. Assertion : O_2 has higher bond length than O_3 . Reason: O_3 is paramagnetic.
The bond length decreases as bond order increases. Hence, bond length of O3\mathrm{O}_3 is higher than O2\mathrm{O}_2.
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