A solution of a substance 'X' is used for testing carbon dioxide. Write the equation of the reaction of 'X' with carbon dioxide.
(ii) How is X obtained ? Write chemical equation.
(i) Substance X is lime water.
Ca(OH)2 + CO2 → CaCO3 + H2O
Ca(OH)2 -(Lime water)
CO2 -(Carbon dioxide)
CaCO3 -(Calcium carbonate)
H2O - (Water)
(ii) Calcium oxide reacts vigorously with water to produce slaked lime (calcium hydroxide) releasing a large amount of heat.
CaO(s) + H2O(l)→ Ca(OH)2(ag)
CaO(s) - (Quicklime)
Ca(OH)2(ag) - (slaked lime)