question_answer

                Which one of the following complexes will have four different isomers?                                              

A)                 \[[Co{{(en)}_{2}}C{{l}_{2}}]Cl\]                                 

B)                 \[[Co(en)(N{{H}_{3}})C{{l}_{2}}]Cl\]

C)                 \[[Co{{(PP{{H}_{3}})}_{2}}(N{{H}_{3}})C{{l}_{2}}]Cl\]                      

D)                 \[[Co{{(en)}_{3}}]C{{l}_{3}}\]

Correct Answer: B

Solution :

                Complex  \[Co(en)\,{{(N{{H}_{3}})}_{2}}C{{l}_{2}}]\] CI will have four different isomers.                 (i) Geometrical isomers.                                 (ii) Optical isomers