See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

Solubility of Gr (2) sulfates Be > Mg >> Ca > Sr > Ba  Thermal stability of carbonates     o o 100 C 1300 C Be Mg Ca Sr Ba        (3c - 4e bonds) Be Cl Cl Be Cl Cl Cl Be Cl  Solubility of Gr (2) hydroxides increases down the group since decrease in lattice enthalpy is faster than decrease in hydration enthalpy.