See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

[Co(NH3)4(H2O)Cl]Br → shows cis-trans isomerism, paramagnetic. sp3d2 hybridization, shows ionization isomerism. K3[Cr(Ox)2Cl2] → shows cis-trans isomerism, paramagnetic, shows optical isomerism d2sp3 hybridization [Ni(H2O)6]Cl2 → sp3d2 hydridization, paramagnetic [Pt(NH3)2Cl2] → Geometrical isomerism, dsp2 hybridization, diamagnetic