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

Which of the following set of molecules will have zero dipole moment?
  1. Boron trifluoride, hydrogen fluoride, carbon dioxide, 1,3-dichlorobenzene
  2. Nitrogen trifluoride, beryllium difluoride, water, 1,3-dichlorobenzene
  3. Boron trifluoride, beryllium difluoride, carbon dioxide, 1,4-dichlorobenzene
  4. Ammonia, beryllium difluoride, water, 1,4-dichlorobenzene

Solution

BF3,BeF2,CO2 & 1,4−dichloro benzene all are symmetrical structure.

Asked in: NEET 2020 (Phase 1)

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