Which pair of elements form acidic oxides
Correct answer: D. C and Si
- A. Li and Be
- B. Mg and Ca
- C. Na and K
- D. C and Si
Explanation
The correct answer is Option D: C and Si. Both carbon and silicon are non-metals that form acidic oxides. Carbon dioxide (CO2) and silicon dioxide (SiO2) are acidic oxides that react with water to form acids.Option A: Li and Be are metals that do not form acidic oxides. Lithium forms a basic oxide, while beryllium forms an amphoteric oxide.Option B: Mg and Ca are alkaline earth metals that form basic oxides, not acidic ones.Option C: Na and K are alkali metals that form basic oxides, typical of their group.
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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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