Which one of the following is an anhydride of sulfuric acid?
Correct answer: A. Sulphur (III) oxide
- A. Sulphur (III) oxide
- B. Sulphur dioxide
- C. Iron pyrite
- D. Disulphur dichloride
Explanation
An anhydride is a compound that, when combined with water, forms an acid or base.When SO₂ reacts with water, it forms sulfurous acid (H₂SO₃):SO₃ + H₂O --> H₂SO₄
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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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