Which metal occurs as skeletal material in egg shells?
Correct answer: A. Calcium
- A. Calcium
- B. Barium
- C. Beryllium
- D. Strontium
Explanation
Explanation:Calcium is found in egg shells, sea shells, teeth, and bones. Barium is a toxic element and is not found in eggshells.Berrylium is a rare and expensive metal that is not used in everyday materials such as eggshells.Strontium is a silvery-white metal that is not typically found in eggshells.
This question appeared on the UHS MDCAT 2009 paper, which you can sit online with every answer explained.
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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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