JEE Advanced 2015 Paper 2 Chemistry Q4

Chemistry · Coordination Chemistry: Structure & Bonding

Problem

Among the complex ions, [Co(NHX2−CHX2−CHX2−NHX2)X2ClX2]X+\ce{[Co(NH2-CH2-CH2-NH2)2Cl2]+}, [CrClX2(CX2OX4)X2]X3−\ce{[CrCl2(C2O4)2]^{3-}}, [Fe(HX2O)X4(OH)X2]X+\ce{[Fe(H2O)4(OH)2]+}, [Fe(NHX3)X2(CN)X4]X−\ce{[Fe(NH3)2(CN)4]-}, [Co(NHX2−CHX2−CHX2−NHX2)X2(NHX3)Cl]X2+\ce{[Co(NH2-CH2-CH2-NH2)2(NH3)Cl]^{2+}} and [Co(NHX3)X4(HX2O)Cl]X2+\ce{[Co(NH3)4(H2O)Cl]^{2+}}, the number of complex ion(s) that show(s) cis-trans isomerism is

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