Strontium lies between calcium and barium in group lIA in the Periodic Table. Which of the following properties could be predicted for strontium?
Correct answer: A. Forms a sparingly soluble sulfate
- A. Forms a sparingly soluble sulfate
- B. Forms a soluble sulfate
- C. Forms a highly reactive sulfate
- D. Forms a volatile sulfate
Explanation
This is the correct answer. Strontium, like calcium and barium, is a Group 2A element (alkaline earth metal). Group 2A elements generally form sparingly soluble sulfates. This means that strontium sulfate (SrSO4) has a low solubility in water.Therefore, based on the trends observed in Group 2A elements, it can be predicted that strontium forms a sparingly soluble sulfate.
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About Reactions of Group II Elements
Group II reactions cover the behaviour of beryllium, magnesium, calcium, strontium and barium with water, oxygen, halogens, acids and nitrogen. The trends in reactivity, hydroxide solubility and basicity, along with the thermal decomposition of carbonates and nitrates, depend on increasing atomic size down the group.
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