AP EAPCET 05-Jul-2022 Shift 1 Paper

(A) BeSO4 is soluble in water due to higher hydration energy of Be2+. It overcomes the lattice energy factors making BeSO4 soluble in water. The statement is correct.
(B) BeO is amphoteric oxide as it can react with both acid and base, thus acting as basic and acidic respectively. The given statement is thus correct.
(C) CO can be obtained by heating CaCO3 at 1070−1270K is a incorrect statement.
CaCO3

∆

→

‌CaO+CO2↑
∴ The correct statements are only A and B.