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Solution of a substance X is used for testing carbon dioxide. Write the equation of the reaction of x with carbon dioxide How is x obtained ?Give chemical reaction. |
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Answer» ong>Answer: Explanation: a) Here X is lime water i.e. Ca(OH)2 , which is used to test the presence of carbon dioxide . The equation of the reaction of x with carbon dioxide: Ca(OH)2 + CO2 ----------> CaCO3 + H2O ---- when CALCIUM hydroxide (lime water) react with carbon dioxide it forms a white precipitate of calcium CARBONATE (the solution turns MILKY ) with the release of water . b) Calcium oxide reacts with water to produce slaked lime (calcium hydroxide) RELEASING a large amount of heat and also produces hissing sound . CaO(s) + H2O(L)---------> Ca(OH)2(aq)
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