Assertion: Rotation about C=C is restricted. Reason: Electron charge cloud of the `pi` bond is located aboe na dbelow the planne of bonding atoms.A. If both assertion and reason are true and reason is the correct explanation of assertionB. If both assertion and reason are true but reason is not the correct explanation of assertionC. If assertion is true but reason is false.D. If both assertion and reason are false.

Assertion: Rotation about C=C is restricted. Reason: Electron charge c

1.	Assertion: Rotation about C=C is restricted. Reason: Electron charge cloud of the `pi` bond is located aboe na dbelow the planne of bonding atoms.A. If both assertion and reason are true and reason is the correct explanation of assertionB. If both assertion and reason are true but reason is not the correct explanation of assertionC. If assertion is true but reason is false.D. If both assertion and reason are false.
Answer» Correct Answer - B In a `pi` bond formation, parallel orientation of the two p orbitals on adjacent atoms is necessary for proper sideways overlap. The p orbitals are mutually parallel and both the p orbitals are perpendicular to the plane of the molecule. Rotation of one `CH_(2)` fragment with respect to other, interferes with maximum overlap of p orbitals and hence such rotation is restricted.

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