\(\mathrm{Cl}_{2} \mathrm{O}\) Acidic
\(\mathrm{Al}_{2} \mathrm{O}_{3}\) amphoteric
2. \(\mathrm{Cl}_{2} \mathrm{O}\) Acidic
\(\mathrm{CaO}\) Basic
\(\mathrm{P}_{4} \mathrm{O}_{10}\) Acidic
3. \(\mathrm{Na}_{2} \mathrm{O}\) Basic
\(\mathrm{SO}_{3}\) Acidic
\(\mathrm{Al}_{2} \mathrm{O}_{3}\) amphoteric
4. \(\mathrm{N}_{2} \mathrm{O}_{3}\) Acidic
\(\mathrm{Li}_{2} \mathrm{O}\) Basic
\(\mathrm{Al}_{2} \mathrm{O}_{3}\) amphoteric