Assertion :Cis-form of alkene is found to be more polar than the trans-form. Reason: Since the groups are in opposite directions in the trans-form, the dipole moments of bonds cancel each other making trans-form almost non-polar.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
In the cis form of an alkene, two identical atoms or groups are on the same side of the double bond whereas in the trans form, the two identical atoms or groups lie on the opposite side of the double bond.

Since the groups are in opposite directions in the trans-form, the dipole moments of bonds cancel each other making trans-form almost non-polar and thus, cis-form of alkene is found to be more polar than the trans-form.

Hence, both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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(a) Assertion and reason both are correct and reason is correct explanation of assertion.
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