Tharusha L.
asked 10/20/20A substance ‘X’ is used in white-washing and is obtained by heating limestone in the absence of air. Identify ‘X’.
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1 Expert Answer
J.R. S. answered 10/20/20
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Ph.D. University Professor with 10+ years Tutoring Experience
Limestone = calcium carbonate = CaCO3
CaCO3 ---heat---> CaO + CO2(g)
X = CaO (calcium oxide)
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Tharusha L.
(a) CaOCl2 (b) Ca (OH)2 (c) CaO (d) CaCO3 are the options10/20/20