Out of the following molecules the one which represents the polar molecule is

Step-by-step solution

Molecular polarity requires a net dipole moment resulting from bond polarities and molecular geometry. Bond polarity arises from electronegativity differences between atoms, while molecular symmetry determines whether individual bond dipoles cancel. H 2 O possesses polar O-H bonds and a bent geometry, yielding a nonzero net dipole. N 2 features identical atoms with zero electronegativity difference, producing a nonpolar molecule. CO 2 has polar C=O bonds, but its linear symmetric geometry causes dipole cancellation