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Answer the following.
Write the IUPAC name of the complex . Which type of isomerism will be exhibited by it?
Write the IUPAC name of the complex $[\text{Cr}(\text{NH}_3)_4\text{Cl}_2]^+$. Which type of isomerism will be exhibited by it?
Answer
Answer
AI| IUPAC name | tetraamminedichloridochromium(III) ion |
| Isomerism | geometrical: 2, optical: no |
Geometrical isomerism (cis and trans): the complex is octahedral with two kinds of ligand ($\mathrm{NH_3}$ and $\mathrm{Cl^-}$), so the two $\mathrm{Cl^-}$ can lie adjacent (cis) or opposite (trans).
From ISC 2018 Specimen Chemistry Paper 1, question 1(d)(ii).
Check your working with the Coordination complex analyser: hybridisation, shape, magnetic moment, CFSE, isomers and the IUPAC name of a complex.