For a molecule to have a permanent dipole moment, the individual dipole moments of its bonds must not cancel out.
(a) H2O : Oxygen goes in the center since hydrogen can only form one bond. The Lewis structure for H2O is:
Which of the following molecules does not have a permanent dipole moment?
a. water, H2O
b. acetone, CH3COCH3
c. carbon dioxide, CO2
d. sulfur dioxide, SO2
e. chloromethane, CH3CI
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