Select option in which set-1 contain most soluble F − , SO 4 2 − , OH − salt of Ca + 2 , Sr + 2 and Ba + 2 and set-2 contain thermally most stable F − , SO 4 2 − , OH − salt of Ca + 2 , Sr + 2 and

Question

Select option in which set-1 contain most soluble F − , SO 4 2 − ​ , OH − salt of Ca + 2 , Sr + 2 and Ba + 2 and set-2 contain thermally most stable F − , SO 4 2 − ​ , OH − salt of Ca + 2 , Sr + 2 and Ba + 2 .

TestHub · Accepted Answer

Solubility of fluorides (F⁻) generally increases down the group: CaF₂ < SrF₂ < BaF₂.

Solubility of sulphates (SO₄²⁻) decreases down the group: CaSO₄ > SrSO₄ > BaSO₄.

Solubility of hydroxides (OH⁻) increases down the group: Ca(OH)₂ < Sr(OH)₂ < Ba(OH)₂.

Thus, the most soluble salts are BaF₂, CaSO₄ and Ba(OH)₂.

Thermal stability gives CaF₂, BaSO₄ and Ba(OH)₂ as the most stable salts. Hence (A).

Chemistry - Complete s-block Question with Solution | TestHub

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