Which of the following oxide of elements is more basic in nature?
Correct answer: A. K2O
- A. K2O
- B. MgO
- C. CaO
- D. Al2O3
Explanation
To determine the basic nature of oxides, we look at the elements' positions in the periodic table. Metals to the left and towards the bottom are more basic. Potassium (K) is an alkali metal, and its oxide K2O is highly basic. Magnesium oxide (MgO) and calcium oxide (CaO) are alkaline earth metal oxides, which are basic but not as strong as alkali metal oxides. Aluminum oxide (Al2O3) is a metalloid oxide that can exhibit both acidic and basic properties. Therefore, K2O is the most basic oxide among the options provided.
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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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