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  • Which of the following ions will be coloured in aqueous solution?Option: 1 <img alt="\text{Ti}^{3+}" src="/latex-image/?%5Ctext%7BTi%7D%5E%7B3&pl

Which of the following ions will be coloured in aqueous solution?

Option: 1

\text{Ti}^{3+}


Option: 2

\text{Sc}^{3+}


Option: 3

\text{Cu}^{+}


Option: 4

\text{Na}^{+}


Answers (1)

best_answer

Transition metal ions with incompletely filled d orbitals are coloured and those with completely filled d orbitals (or vacant d orbitals) are colourless.
\text{Ti}^{3+} are coloured due to d-d transition in incompletely filled d orbitals.
\text{Cu}^{+},\text{Sc}^{3+},\text{and Na}^{+} are colourless due to completely filled and empty d orbitals respectively.

Posted by

jitender.kumar

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