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KVPY2017Chemistrys Block Elements

CO ₂ is passed through lime water. Initially the solution tums milky and then becomes clear upon continued boubbling of CO ₂ . The clear solution is due to the formation of

Options

  1. ACaCO ₃
  2. BCaO
  3. CCa ( OH )₂²
  4. DCa ( HCO ₃ )₂

Correct answer

D. Ca ( HCO ₃ )₂

Step-by-step solution

Ca ( OH )₂+ CO ₂ CaCO ₃+ H ₂ O CaCO ₃+ H ₂ O CO ₂ Ca ( HCO ₃ )₂ Clear solution

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