Question

Assertion: The O-O bond length in ozone is identical with that in molecular oxygen.

Reason: The ozone molecule is a resonance hybrid of two canonical structures.

विकल्प

• If both Assertion and Reason are CORRECT and Reason is the CORRECT explanation of the Assertion.

• If both Assertion and Reason are CORRECT but Reason is not the CORRECT explanation of the Assertion.

• If Assertion is CORRECT but Reason is INCORRECT.

• If Assertion is INCORRECT but Reason is CORRECT.

Answer 1

If Assertion is INCORRECT but Reason is CORRECT.

Explanation:

The assertion is incorrect because the O-O bond length in ozone (127.8 pm) is not the same as in molecular oxygen (121 pm). However, the reason is correct; ozone is a resonance hybrid of two canonical structures, which explains why both O-O bonds in ozone are equal in length and intermediate between a single and double bond.