Question

Does the molecule $OCS$ have a higher or lower dipole moment than $C{S}_2$?

• A. Higher dipole moment than of $C{S}_2$
• B. Lower dipole moment than of $OCS$
• C. Equal dipole moment than of $OCS$
• D. None of these

Answer 1

The correct option is A Higher dipole moment than of $C{S}_2$

$C{S}_2$ or $S=C=S$ is a symmetrical, linear molecule. The individual bond dipole moments are equal in magnitude and opposite in direction. It has zero dipole moment as the individual bond dipoles cancel each other.

On the other hand $OCS$ is unsymmetrical molecule with non zero dipole moment. Hence, the dipole moment of $OCS$ is higher than the dipole moment of $C{S}_2$