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(D) As we move down group $2$ from $Mg(OH)_2$ to $Ba(OH)_2$:$1$. The basic character increases because the metallic character and the ease of releasin

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(D) As we move down group $2$ from $Mg(OH)_2$ to $Ba(OH)_2$:$1$. The basic character increases because the metallic character and the ease of releasing $OH^-$ ions increase due to the increase in atomic size.$2$. The chemical stability (thermal stability) increases as the electropositive character of the metal increases,making the $M-O$ bond stronger relative to the $O-H$ bond.$3$. The solubility in water increases because the lattice energy decreases more rapidly than the hydration energy as the size of the cation increases.Therefore,all three properties increase down the group.

List-$I$	List-$II$
$a$. $Ca(OCl)_2$	$i$. Antacid
$b$. $CaSO_4 \cdot \frac{1}{2} H_2O$	$ii$. Cement
$c$. $CaO$	$iii$. Bleach
$d$. $CaCO_3$	$iv$. Plaster of Paris

Identify the option in which the trends corresponding to hydroxides of group $2$ elements (from $Mg(OH)_2$ to $Ba(OH)_2$) are correctly shown:
Basic character Chemical stability Solubility

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Match List-$I$ with List-$II$.

List-$I$ List-$II$

$a$. $Ca(OCl)_2$ $i$. Antacid

$b$. $CaSO_4 \cdot \frac{1}{2} H_2O$ $ii$. Cement

$c$. $CaO$ $iii$. Bleach

$d$. $CaCO_3$ $iv$. Plaster of Paris

Choose the most appropriate answer from the options given below:

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Identify the option in which the trends corresponding to hydroxides of group $2$ elements (from $Mg(OH)_2$ to $Ba(OH)_2$) are correctly shown:Basic characterChemical stabilitySolubility