MCQ
Given below are two statements: one is labelled as Assertion $(A)$ and the other is labelled as Reason $(R)$.

Assertion $(A)$: Cis form of alkene is found to be more polar than the trans form

Reason $(R)$: Dipole moment of trans isomer of $2$-butene is zero.

In the light of the above statements, choose the correct answer from the options given below :

  • A
    Both $(A)$ and $(R)$ are true but $(R)$ is NOT the correct explanation of $(A)$
  • B
    $(A)$ is true but $(R)$ is false
  • Both ($A$) and $(R)$ are true and $(R)$ is the correct explanation of$(A)$
  • D
    $(A)$ is false but $(R)$ is true

Answer

Correct option: C.
Both ($A$) and $(R)$ are true and $(R)$ is the correct explanation of$(A)$
c
Dipole moment is a vector quantity and for compound net dipole moment is the vector sum of all dipoles hence dipole moment of cis form is greater than trans form.

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