MCQ practice · SSC Chemistry Board questions · Chapter 7: Chemical Reactions
What class of reaction is SiCl₄ + 4H₂O → Si(OH)₄ + 4HCl?
Think it through first, then pick an option.
- a Neutralization
- b Redox
- c Hydration
- d Hydrolysis
Answer and explanation
Correct answer: d Hydrolysis
Water reacted with SiCl₄ as a reactant to give products.
Why the other options are wrong
- a Neutralization: There is no acid-base pair; water reacts with SiCl₄ and breaks it up.
- b Redox: Si stays +4; no oxidation number changes.
- c Hydration: Water has not joined a crystal; new products Si(OH)₄ and HCl formed.
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