Skip to content

Menu

Game modes

Account

← Chemistry
GK QUESTION#3385

What is the product formed in aqueous solution when calcium carbonate reacts with carbon dioxide and water?

  1. ACalcium oxide
  2. BCalcium hydroxide
  3. CHydrochloric acid
  4. DCalcium hydrogen carbonateCorrect answer
Show AnswerHide Answer

Answer

D. Calcium hydrogen carbonate

Show ExplanationHide Explanation

Explanation

Calcium carbonate reacts with dissolved carbon dioxide and water to give aqueous calcium hydrogencarbonate: CaCO₃(s) + CO₂ + H₂O → Ca(HCO₃)₂(aq). In solution it is present as calcium and hydrogencarbonate ions. This is the chemistry behind carbonate dissolution in carbon-dioxide-containing water.

Sign in to report a question issue

Explore this topic

Which listed substance is correctly paired with its formula?In the usual iron-nail displacement experiment, a ______ copper(II) sulphate solution becomes ______ as iron(II) sulphate forms.Which of the following statements is correct?