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Arrange the following in order of increasing
(i) Thermal stability
\[
\mathrm{BeSO}_{4}, \mathrm{MgSO}_{4}, \mathrm{CaSO}_{4}
\]
\( \mathrm{P} \)
(ii) Polarising power \( \mathrm{Be}^{2+}, \mathrm{Mg}^{2+}, \mathrm{Ca}^{2+} \)
W
(iii) Solubility in \( \mathrm{H}_{2} \mathrm{O} \)
\[
\mathrm{Be}(\mathrm{OH})_{2}, \mathrm{Mg}(\mathrm{OH})_{2}, \mathrm{Ca}(\mathrm{OH})_{2}
\]
(iv) Covalent nature
\[
\mathrm{BeCl}_{2}, \mathrm{MgCl}_{2}, \mathrm{CaCl}_{2}
\]
(v) Hydrolysis nature
\[
\mathrm{BeCl}_{2} \mathrm{MgCl}_{2}, \mathrm{CaCl}_{2}
\]
(vi) Lattice energy
\[
\mathrm{CaF}_{2}, \mathrm{MgF}_{2}, \mathrm{BaF}_{2}
\]
(vii) Hydration energy
\[
\mathrm{Be}^{2+}, \mathrm{Mg}^{2+}, \mathrm{Ba}^{2+}
\]
(viii) Solubility in water
\[
\mathrm{MgF}_{2}, \mathrm{BaF}_{2}, \mathrm{BeF}_{2}
\]
(ix) Basic nature
\( \mathrm{Be}, \mathrm{Mg}, \mathrm{Ca}, \mathrm{Sr} \)
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