Three arrangements are shown for the complex [Co(en) (NH3)2Cl2]+. Pick up the wrong statement.
I and II are geometrical isomers
II and III are optical isomers
I and III are optical isomers
II and III are geometrical isomers
II & III are neither mirror images nor superimposable to each other
Draw all the isomers (geometrical and optical) of:
(i) [CoCl2(en)2]+
(ii) [Co(NH3)Cl(en)2]2+
(iii) [Co(NH3)2Cl2(en)]+