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A solution of a substance ‘X’ is used for whitewashing.(i) Name the substance ‘X’ and write its formula.(ii) Write the reaction of the substance ‘X’ named in (i) above withwater.Why can't that substance X be Ca(OH)2 ? |
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Answer» Answer: i)CaO= calcium oxide ii)CaO+H2O=Ca(OH)2 SUBSTANCE X can't be Ca(OH)2 because in QUESTION the substance is asked not the solution (mixture of a substance and a liquid). So the substance is CaO and it's solution with water is Ca(OH)2. Hope it helps. |
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