Which of the following is metasilicic acid
Correct answer: A. H₂SiO₃
- A. H₂SiO₃
- B. H₂SiO₄
- C. H₃AsO₄
- D. H₂SO₄
Explanation
Metasilicic acid has the formula H₂SiO₃, derived from orthosilicic acid by losing one water molecule. Option B (H₂SiO₄) is incorrect as it does not match any silicic acid. Option C (H₃AsO₄) is arsenic acid, containing arsenic instead of silicon. Option D (H₂SO₄) is sulfuric acid, which contains sulfur, not silicon.
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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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