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$+3$
- ✓$+2$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

$(I)\,\,q + \mathrm{w}$ $(II)\,\, q$
$(III)\,\, \mathrm{w}$ $(IV)\,\, H - TS$
$\mathrm{S}_2 \mathrm{O}_3^{2-}, \mathrm{SO}_4^{2-}, \mathrm{SO}_3^{2-}, \mathrm{S}_2 \mathrm{O}_7^{2-}$
$2 Al + 3MnO \to Al_2O_3 + 3Mn$
Which of the following is correct? (Atomic weights of $Mn = 55$ and $Al = 27$)