Vertical electric field that means negative charge is upward. Negative attracts positive charge therefore Carbon move upward.and oxygen is positively charged remains below the Carbon.
So the dipole moment is Upward at 90 degree to the line connecting the Carbon and the oxygen.
Option (C) is correct.
Review1 Constants Part dipoles due to unequal sharing of electrons between the carbon and oxygen atoms....
A covalent bond is a bond in which electrons are shared between atoms of elements. A covalent bond can be polar or nonpolar. In a nonpolar covalent bond, the bond is between two identical atoms and the electrons are evenly shared between the atoms.In contrast, in a polar covalent bond, the bond is between two nonidentical atoms and the electrons are unevenly shared between the atoms. The uneven sharing of electrons takes place because of the difference in the electronegativity...