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Ti4 ion is colourless. Give reason.

0 8.6k Views | Posted 2013-06-09 12:36:41
Asked by Narendra Samaria

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  • Shiksha Ask & Answer

    Answered by

    Swapnil

    2013-06-09 12:45:10
    The transition metal ions which have completely filled d-orbitals are colorless, as there are no vacant d-orbitals to permit promotion of the electrons. Therefore, Zn2+ (3d10), Cd2 + (4d10) and Hg2+(5d10) Sc 3+, Ti4+, Cu+ ions and Zn, Cd, Hg are colorless and diamagnetic. The transition metal ions which have completely empty d-orbitals are also colorless, Thus,Ti4+.ions are colorless, unless a colored anion is present in the compound.

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