Which from following metal ions in their respective oxidation states forms coloured compound?

1. $\mathrm{Zn}^{2+}$
2. $\mathrm{Fe}^{2+}$
3. $\mathrm{Cu}^{+}$
4. $\mathrm{Sc}^{\mathrm{s+}}$

Solution

Colour of transition metal ion depends on the presence of unpaired electrons.

Asked in: MHT CET 2024 (03 May Shift 1)

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