Chemistry-
General
Easy
Question
Among the following the molecule with the highest dipole moment is
The correct answer is:
The dipole moment of a polar molecule depends upon its geometry. A symmetrical molecule is non-polar even though it contain polar bonds. Methane molecule 
has zero moment value of dipole moment due to its symmetrical structure.
In , the resultant of C – H and C – Cl dipole oppose the resultant of two C – Cl dipoles while in , the resultant of C – H dipoles adds to resultant of two C – Cl. In case 
the resultant of two C – H dipole adds to the resultant of two C – Cl. In case the resultant of two C – H dipoles add to the resultant of C – H and C – Cl dipoles.
Thus dipole moment of is highest among the given compounds. The molecule () again becomes symmetrical and dipole moment reduces to zero.
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