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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. |
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Answer» (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) |
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