Transition metals (A-level only)

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Question 23
Medium

Which of the following transition metal complexes is chiral and can exist as a pair of non-superimposable optical isomers?

cis-[Co(en)2(H2O)2]3+ optical isomers

cis−[Co(en)2(H2O)2]3+cis-[Co(\text{en})_2(\text{H}_2\text{O})_2]^{3+}cis−[Co(en)2​(H2​O)2​]3+ (where en=H2NCH2CH2NH2\text{en} = \text{H}_2\text{NCH}_2\text{CH}_2\text{NH}_2en=H2​NCH2​CH2​NH2​)

trans−[Co(en)2(H2O)2]3+trans-[Co(\text{en})_2(\text{H}_2\text{O})_2]^{3+}trans−[Co(en)2​(H2​O)2​]3+ (where en=H2NCH2CH2NH2\text{en} = \text{H}_2\text{NCH}_2\text{CH}_2\text{NH}_2en=H2​NCH2​CH2​NH2​)

trans−[Pt(NH3)2Cl2]trans-[Pt(\text{NH}_3)_2\text{Cl}_2]trans−[Pt(NH3​)2​Cl2​]

[Fe(H2O)6]3+[Fe(\text{H}_2\text{O})_6]^{3+}[Fe(H2​O)6​]3+

Transition metals (A-level only) Questions

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