question_answer

Which of the following complexes show geometrical as well as optical isomerism?

(1) \[{{[Cr{{(OX)}_{3}}]}^{3-}}\]

(2) \[{{[Rh{{(en)}_{2}}C{{l}_{2}}]}^{+}}\]

(3) \[{{[Co{{(N{{H}_{3}})}_{2}}{{(Cl)}_{2}}(en)]}^{+}}\]

Select the correct answer using the codes given below.

A) 1 only  

B) 1 and 2 only

C) 2 and 3 only     

D) 1, 2, and 3

Correct Answer: C

Solution :

[c] With symmetrical bidentate ligands. \[[{{(Cr{{(ox)}_{3}}]}^{3-}}\]does not show geometrical isomerism but in can show only optical isomerism.