alleryThe chemical formula of slaked lime is:
ACaCO₃
BCaSO₄
CCaO
DCa(OH)₂
Answer & Solution
Correct answer: D. Ca(OH)₂
1. Slaked lime is calcium hydroxide, Ca(OH)₂.
2. Formed by adding water to quicklime (CaO): CaO + H₂O → Ca(OH)₂ + heat.
3. CaCO₃ is limestone/marble; CaSO₄·2H₂O is gypsum.
_Source: syllabus Science Ch 1 §1.2.1 (worked example)_
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