Geometrical isomerism is found in coordination compounds having coordination number:

Options

A. (a) `6`
B. (b) `3`
C. (c) `4`(tetrahedral)
D. (d) `2`

Answer

A

Explanation

Geometrical isomerism is found is compound having coordination no. 4 (square planar and not tetrahedral shape) as well as coordination no. 6
Coordination no. 4(square planar) `M_(A_2BC),M_(A_2B_2)`
Showing geometrical isomerism `M_(ABCD)`
Coordination no. 6 (octahedral) `M_(A_4B_2), M_(A_4BC)`
Showing geometrical isomerism `M_(A_3B_3), M_(( A A)_2B_2)`