📊 Chemistry
Q. What is the common name for calcium carbonate?
  • (A) Chalk
  • (B) Lime
  • (C) Marble
  • (D) All of these
✅ Correct Answer: (D) All of these

Explanation: Calcium carbonate (CaCO₃) occurs naturally as chalk, limestone, and marble.

Explanation by: Sikhar Chaudhary
Calcium carbonate (CaCO₃) occurs naturally as chalk, limestone, and marble.

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