Question:
Correct order for solubility of alkaline earth metal fluorides in water is:
Correct order for solubility of alkaline earth metal fluorides in water is:
Show Hint
Alkaline earth fluorides: Solubility decreases down the group (MgF\(_2\) > BaF\(_2\)).
Updated On: Apr 16, 2026
- \(MgF_2>CaF_2>SrF_2>BaF_2\)
- \(MgF_2<CaF_2<SrF_2<BaF_2\)
- \(MgF_2 BaF_2\)
- \(BaF_2>MgF_2>SrF_2>CaF_2\)
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Concept:
Solubility of ionic compounds depends on the balance between lattice energy and hydration energy. For alkaline earth metal fluorides, lattice energy dominates the trend.
Step 1: Identify the trend. Down the group (Mg → Ba):
• Cation size increases
• Lattice energy decreases (but slowly)
• Hydration energy decreases significantly (due to larger cation size)
Step 2: Compare lattice energy vs hydration energy. For fluorides, the decrease in hydration energy down the group is more rapid than the decrease in lattice energy. As a result, solubility decreases down the group: \[ MgF_2>CaF_2>SrF_2>BaF_2 \] MgF\(_2\) is relatively more soluble, while BaF\(_2\) is the least soluble.
Step 3: Conclusion. Option (A) gives the correct decreasing order.
Step 1: Identify the trend. Down the group (Mg → Ba):
• Cation size increases
• Lattice energy decreases (but slowly)
• Hydration energy decreases significantly (due to larger cation size)
Step 2: Compare lattice energy vs hydration energy. For fluorides, the decrease in hydration energy down the group is more rapid than the decrease in lattice energy. As a result, solubility decreases down the group: \[ MgF_2>CaF_2>SrF_2>BaF_2 \] MgF\(_2\) is relatively more soluble, while BaF\(_2\) is the least soluble.
Step 3: Conclusion. Option (A) gives the correct decreasing order.
Was this answer helpful?
0
0
Top MET Chemistry Questions
- Consider the following amino acids:
•[(i)] Lysine
•[(ii)] Glutamine
•[(iii)] Arginine
•[(iv)] Leucine
•[(v)] Serine
•[(vi)] Proline
•[(vii)] Valine Which of the given amino acids are basic in nature?- MET - 2024
- Chemistry
- Chemistry in Everyday Life
- The major product \(Y\) in the following reaction is:
- MET - 2024
- Chemistry
- carbonyl compounds
- In the following sequence of reactions, \[ CH_3Br \xrightarrow{KCN} X \xrightarrow{H_3O^+} Y \xrightarrow{LiAlH_4 / \text{ether}} Z \] The final product \(Z\) is:
- MET - 2024
- Chemistry
- Organic Reactions
- The oxidation state of Cr in \([Cr(H_2O)_6]Cl_3\), \([Cr(C_6H_6)_2]\), \(K_2[Cr(CN)_2(O)_2(O_2)(NH_3)]\) respectively are:
- MET - 2024
- Chemistry
- coordination compounds
- Which of the following ion is colourless inspite of the presence of unpaired electrons?
- MET - 2024
- Chemistry
- The Lanthanoids
View More Questions
Top MET Group 13 Elements Questions
Top MET Questions
Let \( D = \begin{vmatrix} n & n^2 & n^3 \\ n^2 & n^3 & n^5 \\ 1 & 2 & 3 \end{vmatrix} \). Then \( \lim_{n \to \infty} \frac{M_{11} + C_{33}}{(M_{13})^2} \) is:
- MET - 2024
- Determinants
- Given vectors \(\vec{a}, \vec{b}, \vec{c}\) are non-collinear and \((\vec{a}+\vec{b})\) is collinear with \((\vec{b}+\vec{c})\) which is collinear with \(\vec{a}\), and \(|\vec{a}|=|\vec{b}|=|\vec{c}|=\sqrt{2}\), find \(|\vec{a}+\vec{b}+\vec{c}|\).
- MET - 2024
- Addition of Vectors
- Given \(\frac{dy}{dx} + 2y\tan x = \sin x\), \(y=0\) at \(x=\frac{\pi}{3}\). If maximum value of \(y\) is \(1/k\), find \(k\).
- MET - 2024
- Differential equations
- A real differentiable function \(f\) satisfies \(f(x)+f(y)+2xy=f(x+y)\). Given \(f''(0)=0\), then \[ \int_0^{\pi/2} f(\sin x)\,dx = \]
- MET - 2024
- Definite Integral
- Let \( f(x) \) be a polynomial such that \( f(x) + f(1/x) = f(x)f(1/x) \), \( x > 0 \). If \( \int f(x)\,dx = g(x) + c \) and \( g(1) = \frac{4}{3} \), \( f(3) = 10 \), then \( g(3) \) is:
- MET - 2024
- Definite Integral
View More Questions