Q. 44.0( 47 Votes )
Which one of the
The three dimensional structures of the three compounds along with the direction of dipole moment in each of their bonds are given below:-
CCl4 being symmetrical has zero dipole moment. In CHCl3, the resultant of the two C-Cl dipole moments is opposed by the resultant of C-H and C-Cl bonds. Since the dipole Moment of latter resultant is expected to be smaller than the former,CHCl3 has a finite dipole moment(1.03D)
In CH2Cl2, the resultant of two C-Cl dipole moments is reinforced by resultant of two C-H dipoles. Therefore, CH2Cl2(1.62D) has a dipole moment higher than that of CHCl3. Thus ,CH2Cl2 has the highest dipole moment.
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