Q. Which one of the following square planar complexes will form two geometrical isomers ?

 2780  237 Coordination Compounds Report Error

Solution:

Cis-trans isomerism occurs in octahedral and square planar complexes (but not in tetrahedral). When two ligands are adjacent to each other, they are said to be cis and when they are in opposite direction, they are said to be trans.
Of all the above complexes, only can have cis-trans geometry.
image