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Colour Of Transition Elements - Practice Questions & MCQ

Edited By admin | Updated on Sep 18, 2023 18:35 AM | #JEE Main

Quick Facts

  • Formation of Coloured Ions is considered one of the most asked concept.

  • 39 Questions around this concept.

Solve by difficulty

Zinc pieces are added to the acidified solution of SO3-2. AGs liberated can :

An ammoniacal metal salt solution gives a brilliant red precipitate on addition of dimethylglyoxime. The metal ion is:

The orange colour of $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ and purple colour of $\mathrm{KMnO}_4$ is due to

Which of the following compounds show color due to d-d transition?

Concepts Covered - 1

Formation of Coloured Ions

When an electron from a lower energy d orbital is excited to a higher energy d orbital, the energy of excitation corresponds to the frequency of light absorbed. This frequency generally lies in the visible region. The colour observed corresponds to the complementary colour of the light absorbed. The frequency of the light absorbed is determined by the nature of the ligand. In aqueous solutions where water molecules are the ligands, the colours of the ions are observed.

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Formation of Coloured Ions

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Reference Books

Formation of Coloured Ions

Chemistry Part I Textbook for Class XII

Page No. : 229

Line : 6

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