A compound P on heating gives a solid Q and gas R. Q is used intensively in the cement industry
and is an oxide of a group 2 element. The compound Q reacts vigorously with water to produce
compound S releasing a large amount of heat. Identify P, Q, R and S, also write chemical
reactions involved.
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Answer:
P : Calcium Carbonate
Q : Calcium Oxide
R: Carbon Dioxide
S: Calcium Hydroxide
Info: Calcium oxide ( Quick lime ) is used for white washing in cement industries.
Explanation:
Equations:
CaCO3 + Heat -----> CaO + CO2
CaO + H2O ------> Ca(OH)2 + Heat
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