Linear form of carbondioxide molecule has two polar bonds. Yet the molecule has zero dipole moment why?

Explanation

(i) The linear form of carbon dioxide has zero dinole moment, even thougn it has two polar bonds.
(ii) In `CO_(2),` there are two polar bonds [C = O] which have dipole momens that are equal in magnitude but have opposite direction.
(iii) Hence the net dipole moment of the `CO_(2) " " is " "mu = mu_(1)+ (-mu_(1))=0`
(iv)
(v) In this case,
(iv) `underset(mu_(1))overset(O=)rarroverset(C=O)underset(mu_(1))larr`
(v) In this case. `mu=vecmu_(1)+vecmu_(2)=vecmu_(1)+(-vec(mu_(1)))=0`