JEE Main levelSingle correct optionDifficulty 2 of 3cc020
How many geometrical isomers are possible for an octahedral complex of the type [Cr(HX2O)X3ClX3]?
A1
B2
C3
D4
Answer: B
An MA3B3 octahedral complex has the facial isomer (three identical ligands on one triangular face) and the meridional isomer (three in a plane through the metal). Neither is chiral, so there are 2 isomers.