Which one of the following is expected to exihibit optical isomerism ?(en= ethylenediamine)
Identify the optically active compounds from the following (a) [Co(en)3]3+ (b) trans−[Co(en)2Cl2]+ (c) cis−[Co(en)2Cl2]+ (d) [Cr(NH3)5Cl]
Dipole moment will be zero in the complexes
I) [Ni(CN)4]2−
II) Cis−[Pt(NH3)2Cl2]
III) Trans -[Pt(NH3)2Cl2]