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JEE Main202310 Apr 2023Morning ShiftChemistryChemical Bonding and Molecular StructureActual

The pair from the following pairs having both compounds with net non-zero dipole moment is

Options

  1. A1 ,   4 -Dichlorobenzene, 1 ,   3 -Dichlorobenzene
  2. Bcis-butene, trans-butene
  3. CCH 2 Cl 2 ,   CHCl 3
  4. DBenzene, anisidine

Correct answer

C. CH 2 Cl 2 ,   CHCl 3

Step-by-step solution

The dipole moment is the vector sum of all the bond moments. The CH 2 Cl 2 and CHCl 3 both have net non-zero dipole moment because the bond moments are not cancelled each other due to their tetrahedral structure. The 1 ,   4 -dichlorobenzene, trans-butene, benzene have zero dipole moment due to cancellation of bond moments. The 1 ,   3 -dichlorobenzene, cis-butene, anisidine has non-zero dipole moment.

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