JEE Main Chemistry question

Which has zero dipole moment?

(A)1,1-Dichloroethene
(B)Cis-1,2-dichloroethene
(C)Trans-1,2-dichloroetheneCorrect
(D)None of the above

Answer: (C)

Solution

In trans-1,2-dichloroethene, the two C–Cl bonds point in opposite directions across the double bond, so their bond dipoles cancel exactly, giving zero net dipole moment. In 1,1-dichloroethene and

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Question ID VK-133474