Arrange the following compounds in increasing order of dipole moment.

CH3CH2CH3,CH3CH2NH2,CH3CH2OH

 
The dipole moment of amine, alcohol, and hydrocarbon can be explained on the basis of bond polarity of C—H, N—H, and O—H bond. As the bond polarity increase, the dipole moment increases CH3CH2CH3<CH3CH2NH2<CH3CH2OH