(A) The solubility of alkaline earth metal hydroxides increases down the group from $Be(OH)_2$ to $Ba(OH)_2$. This is because the lattice energy decre

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(A) The solubility of alkaline earth metal hydroxides increases down the group from $Be(OH)_2$ to $Ba(OH)_2$. This is because the lattice energy decreases more rapidly than the hydration energy as the size of the metal cation increases. Therefore,$Be(OH)_2$ has the lowest solubility in water.

Class 11 Chemistry s-Block Elements Alkaline earth metals

Which of the following alkaline earth metal hydroxides is the least soluble in water?

A
$Be(OH)_2$
B
$Mg(OH)_2$
C
$Ca(OH)_2$
D
$Ba(OH)_2$

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Class 11 Questions

Class 11

Chemistry Questions

Chapter

s-Block Elements

Subtopic

Alkaline earth metals

Which of the following alkaline earth metals forms complex compounds?

Easy

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Fill in the blanks:
$(1)$ Calcium and beryllium have flame colors of ...... and ....... respectively.
$(2)$ Quantitative analysis of calcium is carried out by ........
$(3)$ Beryllium powder on combustion burns brightly in air and gives ...... and .......
$(4)$ Beryllium hydroxide on dissolving in alkali gives .......

Difficult

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Match List-$I$ with List-$II$ for the compositions of substances and select the correct answer using the code given below the lists.
List-$I$ Substances List-$II$ Composition
$A$. Plaster of paris $i$. $CaSO_4.2H_2O$
$B$. Epsomite $ii$. $CaSO_4.\frac{1}{2}H_2O$
$C$. Kieserite $iii$. $MgSO_4.7H_2O$
$D$. Gypsum $iv$. $MgSO_4.H_2O$
$v$. $CaSO_4$

List-$I$ Substances	List-$II$ Composition
$A$. Plaster of paris	$i$. $CaSO_4.2H_2O$
$B$. Epsomite	$ii$. $CaSO_4.\frac{1}{2}H_2O$
$C$. Kieserite	$iii$. $MgSO_4.7H_2O$
$D$. Gypsum	$iv$. $MgSO_4.H_2O$
	$v$. $CaSO_4$