MCQ
The set having ions which are coloured and paramagnetic both is :
- A$\mathrm{Sc}^{3+}, \mathrm{V}^{5+}, \mathrm{Ti}^{4+}$
- ✓$\mathrm{Cu}^{2+}, \mathrm{Cr}^{3+}, \mathrm{Sc}^{+}$
- C$\mathrm{Ni}^{2+}, \mathrm{Mn}^{7+}, \mathrm{Hg}^{2+}$
- D$\mathrm{Cu}^{+}, \mathrm{Zn}^{2+}, \mathrm{Mn}^{4+}$
