which of the following compounds have polar bonds and a net dipole moment?

a) H3COH
b) H3CCOCH3

ALSO PLEASE CHECK THIS, RANK THE FOLLOWING FROM MOST TO LEAST ACIDIC COMPOUND:
A)H2SO4>H3CCO2H>H20
B)H3CCH2NH2>H3CCH2OH>H3CCO2H

3 answers

Both a and b have polar bonds and a net dipole moment.
H2SO4 is most acidic. H2O least.
CH3COOH is most acidic. CH3CH2NH2 is least.
Why is CH3CH2NH2 the least acidic?
The NH2 group in organic chemistry is an amine group and they are basic. Think of ammonia, NH3. This is just like ammonia except CH3CH2 roup has been substituted for one of the H on the NH3. The N has a lone pair of electrons which can accept a proton and that makes it a base.