Zn2+ salt are colourless
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because they do not have any unpaired electron
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Zn forms only Zn2+ as a stable ion in aqueous solution. Zn2+ has the electronic configuration of 1s2 2s2 2p6 3s2 3p6 3d10
In the presence of water ligands, the 3d orbitals will be split into two different energy levels.
Although there is splitting, but because of the d10 configuration, there is no vacancy in the higher energy d orbital for the promotion to take place. Since no colour is absorbed, the white light passes through and hence the solution appears colourless.
In the presence of water ligands, the 3d orbitals will be split into two different energy levels.
Although there is splitting, but because of the d10 configuration, there is no vacancy in the higher energy d orbital for the promotion to take place. Since no colour is absorbed, the white light passes through and hence the solution appears colourless.
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