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JEE Chemistry · Medium

Chemical Bonding: Dipole Moment MCQ

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Dipole MomentMediumQuestion 600310

Question

Which of the following has zero dipole moment despite polar bonds?
  1. A
    HCl
  2. B
    H₂O
  3. C
    BF₃
    Correct
  4. D
    NH₃

Correct answer

BF₃

Explanation

BF₃ is trigonal planar — the three B−F dipoles cancel by symmetry. Zero net dipole moment despite polar bonds.

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