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Solution


Q.

Which of the following set of molecules will have zero dipole moment             [2020]
1 Ammonia, beryllium difluoride, water, 1,4-dichlorobenzene  
2 Boron trifluoride, hydrogen fluoride, carbon dioxide, 1,3-dichlorobenzene  
3 Nitrogen trifluoride, beryllium difluoride, water, 1,3-dichlorobenzene  
4 Boron trifluoride, beryllium difluoride, carbon dioxide, 1,4-dichlorobenzene   

Ans.

(4)