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29/10/2020 5:27 pm
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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 with water.
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29/10/2020 5:30 pm
(i) The substance whose solution in water is used for white washing is calcium oxide (or quick lime). Its formula is CaO.
(ii) CaO(s) Calcium oxide (Quick lime) + H2O(l) → Ca(OH)2(aq) Calcium hydroxide (Slaked lime)