Question

What would be the molecular geometry of the $OCS$ molecule?

• A. Linear
• B. Bent
• C. Trigonal planar
• D. Tetrahedral

Answer 1

The correct option is A Linear

The hybridization of $OCS$ is $sp$ with $2$ sigma bond pairs and no lone pair of electrons on the central atom, which is carbon. According to the VSEPR theory, since there is no lone pair on the central atom, there is no lone pair-bond pair repulsion, and therefore, no distortion in geometry.

Thus, the shape of $OCS$ molecule is linear, as shown in the figure, with a bond angle of ${180}^{\circ }$.

Hence, option (A) is correct.