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Chemistry · PYQ NEET UG 2020

हिन्दी

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

Correct answer · Option 3

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

Explanation

Boron trifluoride (trigonal planar), beryllium difluoride (linear), carbon dioxide (linear), and 1,4-dichlorobenzene (symmetrical) all have zero dipole moment.
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