NEET Chemistry The s-Block Elements Questions Solved


Solubility of sulphates in water decreases from MgSO4 to BaSO4. It is due to the fact that –

(A) Ionic nature increases

(B) Size of M2+ ion increases

(C) Lattice energy decrease

(D) Hydration enthalpy of M2+ ions decreases

(D). Hydration energy of M2+ ions decreases as the ion size increases down the group from Be to Ba. The order of decrease in hydration energy is

Be2+>Mg2+>Ca2+>Sr2+>Ba2+.

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