MCQ
Which of the following ions is paramagnetic
- A$C{u^ + }$
- B$Z{n^{ + 2}}$
- ✓$T{i^{ + 3}}$
- D$T{i^{ + 4}}$

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[Given : $h =6.63 \times 10^{-34}\, J \,s$, and $c =3 \times 10^{8} \,m\, s ^{-1}$ ]
