a compound A is heated then, a gas is B is evolved and a residue C is left. Then C is reacted with water and D compound is formed then the gas B is passed through D in excess and then again compound A is formed. Identify A,B,C,D?
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A-calcium carbonate
B-carbon dioxide
C-calcium oxide
D-calcium hydroxide
B-carbon dioxide
C-calcium oxide
D-calcium hydroxide
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A- Calcium carbonate
B- Carbondioxide
C- Calcium Oxide
D- Calcium hydroxide
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