Predict which of the following will be coloured in aqueous solution?Ti – InterviewSolution

1.	Predict which of the following will be coloured in aqueous solution?Ti3+, V3+, Sc3+, Mn2+, Fe3+, Co2+ and Mnoa
Answer» Ions with incompletely filled d orbitals will be coloured. Due to d-d transition, Ti³⁺, V³⁺, Mn²⁺, Fe³⁺ and Co²⁺ are coloured. MnO₄^- is also coloured due to charge transfer. Only Sc³⁺ (3d⁰) is colourie.

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