Which of the following elements of IIA group does not react with water even at red hot temperature?
Correct answer: B. Be
- A. Mg
- B. Be
- C. Ca
- D. Ba
Explanation
Beryllium does not react with water, even at red-hot temperatures. This is because beryllium has very high ionization energy, which makes it difficult for the water molecules to remove electrons from the beryllium atom. Additionally, beryllium forms a very strong oxide layer on its surface, which protects the metal from further reaction with water.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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