Which of the following set of molecules will have zero dipole moment ?

Question

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

Tardigrade Admin · Accepted Answer

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. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/4919e9db0f1ce2621b54c02d34a539a4-.png" />

Q. Which of the following set of molecules will have zero dipole moment ?

Ammonia, beryllium difluoride, water, 1,4-dichlorobenzene

Boron trifluoride, hydrogen fluoride, carbon dioxide, 1,3-dichlorobenzene

Nitrogen trifluoride, beryllium difluoride, water, 1,3-dichlorobenzene

Boron trifluoride, beryllium difluoride, carbon dioxide, 1,4-dichlorobenzene

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.