1.

(i) 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.

Answer»

Solution :(i) SUBSTANCE X-Calcium HYDROXIDE.
`CA(OH)_(2)(aq)+CO_(2)(g)rarr UNDERSET (("White PPT."))(CaCO_(3)(S))+H_(2)O`
(ii) Calcium hydroxide is obatined by reaction ofcalcium oxide and water.
`CaO(s)+H_(2)O(l)rarr Ca(OH)_(2)(aq)+"Heat"`


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