Q15 / 50 · Manipal (MET) 2023 · Chemistry
Among $\mathrm{Cu}^{2+}, \mathrm{Fe}^{3+}, \mathrm{Ti}^{3+}$ and $\mathrm{Zn}^{2+}$ ions.
The number of ions that impart colour is____.
Correct answer: 3
Solution
$\mathrm{Cu}^{2+}, \mathrm{Fe}^{3+}, \mathrm{Ti}^{3+}$ have unpaired electron which impart colour to the ions whereas $\mathrm{Zn}^{2+}$ has no unpaired, thus it does not impart any colour.
Hence, the correct answer is 3.