Octahedral complex shows which form of geometrical isomerism

Options

A. cis
B. trans
C. mer
D. fac

Answer

D

Explanation

When the three ligands ( with same donor atoms ) are on the same triangular face of the octahedron, the isomer is called facial or fac isomer.

In this complex the three ligands are on the same triangular face of the octahedral.