Question

Assertion : cis- 3 - chloroprop - 2enoic acid is less stable than its trans-form.
Reason : Dipole momentof cis-form is greater than transform.
A. If Both assertion and reason are true reason is a true explation of the assertion.
B. If Both assertion and reason are true but the reason is not the correct explation of the assertion.
C. If assertion is true but reason is false.
D. If assertion is false but reason is true.

Answer 1

Correct Answer - B
Assertion is true because usually, for acrylic systems trans -isomers are more stable than cis-isomers. This is due to increased unfavaurable stric interaction of the subtituents in cis-isomer. Reason is also true because generally the dipole moment of trans-from is zero (or) depending whether the subtituents on both sides of double bond are same or not while cis-form are polar in nature with contain value of dipole moment.