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Monday, 13 April 2026
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When carbon dioxide is bubbled into limewater, a white precipitate is formed. If the ...

When carbon dioxide is bubbled into limewater, a white precipitate is formed. If the passage of the gas is continued,the precipitate disappears.
The reasons for this is ____________
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  • A Calcium carbonate is formed which on reaction dissolves
  • B Calcium hydrogen carbonate is precipitated and then dissolves
  • C Calcium carbonate is formed which on reaction with further carbon dioxide forms soluble calcium hydrogen carbonate
  • D Concentration of solution has occurred with the deposition of calcium hydroxide
  • E The solution has become saturated and solid carbon dioxide has been deposited
Correct Answer: Option C
Explanation:

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