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1021

Q:

Chemical structure of pearl is-

  • 1
    Calcium carbonate
  • 2
    Calcium carbonate and magnesium carbonate
  • 3
    Calcium chloride
  • 4
    Calcium sulfate
  • Show Answer
  • Workspace

Answer : 2. "Calcium carbonate and magnesium carbonate"

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GK Chemistry General Knowledge Questions

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