Please see http://wiki.answers.com/Q/Which_is_more_polar_fluorene_or_florenone
CH3CN, Acetonitrile, is a polar molecule. With the triple bond between C and N, a negative charge weighs to the Nitrogen, while on the other "side" of the molecule the Hydrogen atoms tend to a...
polar
Yes, for example, in hydrogen peroxide (H2O2), the O-O bond is nonpolar, but the molecules is still polar because of the polar O-H bonds.