Which of the following is most soluble in water?
Correct answer: D. MgSO4
- A. BaSO4
- B. SrSO4
- C. CaSO4
- D. MgSO4
Explanation
The solubility of Group 2 sulfates decreases as you move down the group from magnesium to barium. Therefore, MgSO4 (magnesium sulfate) is the most soluble in water among the given options. CaSO4, SrSO4, and BaSO4 are less soluble, with BaSO4 being the least soluble due to the larger ionic size and lattice energy.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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