AP EAPCET 22 May 2025 Shift 2 Paper

Statement I:$\mathrm{Al}_2\mathrm{O}_3$ is amphoteric in nature.Explanation:Aluminum oxide reacts both with acids and with bases, forming salts in each case.$\;\mathrm{Al}_2\mathrm{O}_3 + 6\mathrm{HCl} \longrightarrow 2\mathrm{AlCl}_3 + 3\mathrm{H}_2\mathrm{O}$$\;\mathrm{Al}_2\mathrm{O}_3 + 2\mathrm{NaOH} + 3\mathrm{H}_2\mathrm{O} \longrightarrow 2\mathrm{Na}[\mathrm{Al}(\mathrm{OH})_4]$Hence, aluminum oxide is amphoteric.So, Statement I is correct.Statement II:$\mathrm{Tl}_2\mathrm{O}_3$ is more basic than $\mathrm{Ga}_2\mathrm{O}_3$.We are comparing Group 13 element oxides:$\mathrm{B}_2\mathrm{O}_3 < \mathrm{Al}_2\mathrm{O}_3 < \mathrm{Ga}_2\mathrm{O}_3 < \mathrm{In}_2\mathrm{O}_3 < \mathrm{Tl}_2\mathrm{O}_3$→ Trend: From B to TI, metallic character increases, so basic character of oxides increases (acidic → amphoteric → basic).Thus, $\mathrm{Tl}_2\mathrm{O}_3$ (Thallium(III) oxide) is more basic than $\mathrm{Ga}_2\mathrm{O}_3$ (Gallium oxide).So, Statement II is also correct.Final Answer:Option A: Both Statement I and Statement II are correct.