which of the following molecules has the greatest dipole moment CH3Cl, CH2Cl2, CHCL3?

Answer 1

All of these compounds contain polar C-Cl bonds but the tetrahedral arrangement makes the bond dipoles to cancel each other and thus the dipole moment actually decreaces with increasing number of Cl atoms:

CH3Cl (1.87D) >CH2Cl2 (1.54D)> CHCl3 (1.02 D) > CCl4, CH4 (0 D)

You should check:
http://dwb.unl.edu/Teacher/NSF/C06/C06Links/www.uis.edu/7Etrammell/organic/introduction/polarity.htm

Answer 2

CHCl3 would have the greatest dipole moment. The atoms are in a tetrahedron with the Carbon in the center. The negativity of the Clorine is what creates the dipole and three of them create a greater net force.

Answer 3

Ch3cl Dipole Moment

Answer 4

bellerophon nailed the answer on this one.

The problem is that the affect of adding more electronegative atoms is not always additive. Dipole moments are vector quantities, so the two distortions of the electron cloud from the 2 or 3 carbons are countered by the distortions of another. The net effect is what's important, not the affect of each atom.

Answer 5

CH3Cl has a greater dipole moment, because the CH3- is a stronger electron donor than CH2- and CH-

Answer 6

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All the above compounds are tetrahedral in shape. Since the dipole moment of a bond is aligned parallel to that bond, we have a tetrahedron of dipoles. If all the dipoles are equal, they will cancel out if arranged tetrahedrally, that happens in CCl4, it has a 0 dipole moment.

Answer 7

CH2Cl2 depending on arrangement

Answer 8

CHCL3 is the right answer

Answer 9

i think CH2Cl2 does

Answer 10

CH3-Cl