Name the following coordination entities and draw the structures of their steroisomers: (i)[Co(en)2Cl2]+ (en=ethane-1,2-diamine) (ii)[Cr(C2O4)3]3− (iii)[Co(NH3)3Cl3] (Atomic number Cr=24, Co=27)

(i)[Co(en)2Cl2]+: dichoridobis (ethylenediamine) cobalt (III) ion (as 2 chlorine atoms are there di chloro, 2- ethylene diamine groups represent bis (en))
(ii)[Cr(C2O4)3]3−: Trioxalatochromate (III) ion (as 3 oxylate groups represents (tri oxylatato))
(iii)[Co(NH3)3Cl3]: triamminetrichloridocobalt (III) ( as three ammino and three chloine atoms represent tri ammine tri chloro )