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Manipal MET2019Chemistrys Block Elements

When CO ₂ is passed through solution of calcium hydroxide, which one of the following compound is precipitated?

Options

  1. ACa ( HCO ₃ )₂
  2. BCaO
  3. CCaCO ₃
  4. DCa ( OH )₂

Correct answer

C. CaCO ₃

Step-by-step solution

CO ₂ gas is passed in Ca ( OH )₂ solution the solution becomes milky white to form CaCO ₃ and if the CO ₂ is passed in excess the milky white solution become colourless due to the formation of Ca ( HCO ₃ )₂ . Ca ( OH )₂+ CO ₂ CaCO ₃ + H ₂ O

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