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Question:

What type of isomerism is shown by the complex [Cr(H2O)6]Cl3?

Solution:

(i) Hydrate isomerism shown by the complex [Cr(H2O)6]Cl3, [Cr(H2O)5Cl]Cl2(H2O); [Cr(H2O)4Cl2]Cl.2(H2O) (ii) Since Δo > P, it is on splitting t2g e g (iii) [CoF6]3−: sp3d2 hybridization and octahedral shape Co3+.