Question
Chemistry Question on Chemical bonding and molecular structure
Which of the following set of molecules will have zero dipole moment?
A
Ammonia, beryllium difluoride, water, 1,4-dichlorobenzene
B
Boron trifluoride, hydrogen fluoride, carbon dioxide, 1,3-dichlorobenzene
C
Nitrogen trifluoride, beryllium difluoride, water, 1,3-dichlorobenzene
D
Boron trifluoride, beryllium difluoride, carbon dioxide, 1,4-dichlorobenzene
Answer
Boron trifluoride, beryllium difluoride, carbon dioxide, 1,4-dichlorobenzene
Explanation
Solution
The species with polar bonds and shall be non polar i.e., have zero dipole moment if resultant of all dipoles is cancelled due to symmetrical structure.