Q. What is the chemical formula of quicklime?

  • (A) CaCO3
  • (B) Ca(OH)2
  • (C) CaO
  • (D) CaCl2
✅ Correct Answer: (C) CaO
Explanation: Quicklime is calcium oxide (CaO). It reacts with water to form slaked lime (Ca(OH)2). Calcium carbonate (CaCO3) is limestone, not quicklime.

Published by Sikhar Chaudhary ⭐ 5.88K Points at 06-Oct-2025 06:41 am in Chemistry

Explanation by: Sikhar Chaudhary
Quicklime is calcium oxide (CaO). It reacts with water to form slaked lime (Ca(OH)2). Calcium carbonate (CaCO3) is limestone, not quicklime.

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