A solution of substance X is used for white washing. What is substance X? Write the chemical reaction of X with water.
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2 Answers. (i) Substance X is Calcium Oxide whose solution we use in water which is used for white washing. The formula of substance X is Cao. (ii) Calcium oxide reacts vigorously with water to produce slaked lime (calcium hydroxide) releasing a large amount of heat
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substance x is calcium oxide Ca0
CaO+ H2O ----> Ca(OH)2
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