Ncert Exercises & Solutions

26 A complex of the type ${[M {(A A)}_{2} X_{2}]}^{n +}$ is known to be optically active.

What does this indicate about the structure of the complex? Give one

example of such complex.

An optically active complex of the type

{[M {(A A)}_{2} X_{2}]}^{n +}

indicates cis-octahedral structure,

eg. cis ${[P t (e n_{2} C l_{2}]}^{2 +} o r c i s - {[C r {(e n)}_{2} C l_{2}]}^{+}$ because its minor image isomers are

non-superimposable.

Non-superimposable isomers of ${[P t {(e n)}_{2} C l_{2}]}^{2 +}$