Silicon react with steam at red hot to produce
Correct answer: A. SiO₂ + H₂
- A. SiO₂ + H₂
- B. Si(OH)₄ + H₂
- C. SiO₂ + SiH₄
- D. SiH₄ + O₂
Explanation
When silicon is exposed to steam at red-hot temperatures, it forms silicon dioxide (SiO₂) and releases hydrogen gas (H₂) as a byproduct. This reaction is typical for non-metals reacting with steam. Option A is correct because it aligns with the expected products. Options B, C, and D are incorrect as they propose either incorrect products like silicon hydroxide or silane, or incorrect reactants like oxygen gas instead of steam.
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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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