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351

Q:

Limestone, chalk and marble are different forms of ______.

  • 1
    Calcium phosphate
  • 2
    Calcium hydroxide
  • 3
    Calcium oxide
  • 4
    Calcium carbonate
  • Show Answer
  • Workspace

Answer : 4. "Calcium carbonate"
Explanation :

Limestone , chalk and marble are different forms of calcium carbonate.

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