Which of the following statements is not true | vedclass

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(C) The statement "All their ions are colourless" is false. Transition metal ions often exhibit color due to $d-d$ electronic transitions. Most transi

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All their ions are colourless

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(C) The statement "All their ions are colourless" is false. Transition metal ions often exhibit color due to $d-d$ electronic transitions. Most transition metal ions have partially filled $d-$orbitals,which allow for these transitions,resulting in colored compounds. Only a few ions,such as $Sc^{3+}$ or $Zn^{2+}$,are colorless due to empty or completely filled $d-$orbitals.

Which of the following statements is not true in regard to transition elements?

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