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.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Practise s-Block and p-Block Elements
1,359 free s-Block and p-Block Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.