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Chalk and marble are different forms of

Options

  1. ACalcium hydrogen carbonate
  2. BCalcium carbonate
  3. CCalcium acetate
  4. DSodium carbonate

Correct answer

B. Calcium carbonate

Step-by-step solution

Chalk and marbles are different forms of Calcium carbonate. Chemical formula of both Marble and Chalk is CaCO ₃ . Marble is metamorphosed limestone; Chalk is also a form of limestone consists of soft, porous rocks.

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