Answer:
Answers are in the explanation
Explanation:
In chemistry, isomers are substance with identical formulas (In this case C₂H₂Br₂) but different structures.
The three different structures are presented in the image.
Vectors represent the dipole moment. For a, vector will be cancel, that means this is the structure that has no dipole moment. In b and c the sum of the vector gives an up vector and a left vector, respectively. b and c have dipole moment.
I hope it helps!
