Which of the following reaction in used in white washing if walls
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Answer:
First is-
CaO+H2O--------> Ca(OH)2 and other is Ca(OH)2+CO2-------->CaCO3+H2O
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CaO + H₂O -----------------> Ca(OH)₂ + heat
Ca(OH)₂ + CO₂ --------------> CaCO₃ + H₂O
The carbon di oxide present in the air reacts slowly with the slaked lime to form calcium carbonate that gives a shiny finish to the walls.
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