A solution of a substance ‘X’ is used for white washing.(i) Name the substance ‘X’ and write its formula.(ii) Write the reaction of the substance ‘X’ named in (i) above withwater
Question
A solution of a substance ‘X’ is used for white washing.(i) Name the substance ‘X’ and write its formula.(ii) Write the reaction of the substance ‘X’ named in (i) above withwater
Solution
(i) The substance 'X' used for white washing is Calcium Oxide. Its formula is CaO.
(ii) The reaction of Calcium Oxide (CaO) with water is a combination reaction. In this reaction, Calcium Oxide and water react to form Calcium Hydroxide. The chemical equation for this reaction is:
CaO + H2O -> Ca(OH)2
This is also known as slaked lime and it is this slaked lime that is used for white washing.
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