Question Detail
Question
Which of the following compounds will have zero dipole moment?
Correct Answer
Option C is the correct answer.
Detailed Explanation
In trans-1,2-dibromoethylene, the two C-Br bond dipoles are oriented in opposite directions and cancel each other out, resulting in a net dipole moment of zero. In the cis and 1,1-isomers, the dipoles do not cancel.
Hint
Which isomer has the C-Br bond dipoles canceling?