MCQ
The first, second and third Ionisation energies $(E_1 , E_2$ and $E_3)$ for an element are $7\, eV, 12.5\,eV$ nnd $42.5\, eV$ respectively. The most stable oxidation state of the element will be
- A$+1$
- B$+4$
- C$+3$
- ✓$+2$
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