Question

Octahedral complexes of the type $[M{a}_2{b}_2{c}_2{]}^{n\pm }$ has:
Here $a,b,c$ are monodentate ligands

• A. 2 geometrical isomers.
• B. 1 enantiomeric pair.
• C. no optically active geometrical isomer
• D. All of the above.

Answer 1

The correct option is B 1 enantiomeric pair.

Octahedral Complexes Having Monodentate Ligands
$[M{a}_2{b}_2{c}_2{]}^{n\pm }$ :
It has 5 geometrical isomers out of which 1 is optically active as shown
It has 1 enantiomeric pair