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JEE Main202224 Jun 2022Evening ShiftChemistryHydrocarbonsActual

Given below are two statements. Statement I: The presence of weaker π -bonds make alkenes less stable than alkanes Statement II: The strength of the double bond is greater than that of carbon-carbon single bond. In the light of the above statements, choose the correct answer from the options : given below.

Options

  1. ABoth Statement I and Statement II are correct.
  2. BBoth Statement I and Statement II are incorrect.
  3. CStatement I is correct but Statement II is incorrect.
  4. DStatement I is incorrect but Statement II is correct.

Correct answer

A. Both Statement I and Statement II are correct.

Step-by-step solution

As sigma bond is formed along the internuclear axis it is stronger than pi-bond, and due to the presence of pi-bonds alkenes will be more reactive towards electrophilic reagents.Hence they are less stable than alkanes. The strength of carbon-carbon double bond is greater than single bond as bond strength is directly proportional to bond order. Hence, both the statements are correct.

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