Question:
The correct increasing order of solubility of sulphates in water is:
The correct increasing order of solubility of sulphates in water is:
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Solubility of salts tends to decrease with increasing ionic size and lattice energy.
Updated On: Apr 1, 2025
- \( \text{BeSO}_4 > \text{MgSO}_4 > \text{CaSO}_4 > \text{SrSO}_4 > \text{BaSO}_4 \)
- \( \text{BaSO}_4 > \text{SrSO}_4 > \text{CaSO}_4 > \text{MgSO}_4 > \text{BeSO}_4 \)
- \( \text{H}_2\text{SO}_3, \text{NO}_2 \) and \( \text{SO}_2 \)
- \( \text{SO}_2, \text{NO}_2 \) and \( \text{H}_2\text{O} \)
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The Correct Option is A
Solution and Explanation
The solubility of sulphates in water generally decreases as we move down the group in the periodic table.
Among the alkaline earth metal sulphates, the solubility decreases in the order \( \text{BeSO}_4 > \text{MgSO}_4 > \text{CaSO}_4 > \text{SrSO}_4 > \text{BaSO}_4 \).
This trend is due to the increasing size and decreasing lattice energy as we move from beryllium to barium.
Thus, the correct answer is (a).
Among the alkaline earth metal sulphates, the solubility decreases in the order \( \text{BeSO}_4 > \text{MgSO}_4 > \text{CaSO}_4 > \text{SrSO}_4 > \text{BaSO}_4 \).
This trend is due to the increasing size and decreasing lattice energy as we move from beryllium to barium.
Thus, the correct answer is (a).
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