Coordination Compounds Part 1

Cr(H2O)6Cln
if magnetic mement is 3.83 BM then it contain three unpaired electrons. It means chromium in +3 oxidation state so molecular formula is Cr(H2O)6Cl3
∴ This formula have following isomers (a) Cr(H2O)6Cl3 : react with AgNO3 but does not show geometrical isomerism.
(b) [Cr(H2O)5Cl]Cl2.H2O react with AgNO3 but does not show geometrical isomerism.
(c) [Cr(H2O)4Cl2]Cl.2H2O react with AgNO3 & show geometrical isomerism.
(d) [Cr(H2O)3Cl3].3H2O does not react with AgNO3 & show geometrical isomerism.
[Cr(H2O)4Cl2]Cl.2H2O react with AgNO3 & show geometrical isomerism and it's IUPAC nomenclature is Tetraaquadichlorido chromium (III) Chloride dihydrate.