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Important compounds: NaOH, Na2CO3, NaHCO3, CaO, CaCO3, plaster of Paris
NEET level
Single correct option
Difficulty 1 of 3
sb176
Strong heating of limestone gives quicklime and
A
carbon dioxide
B
oxygen
C
steam
D
carbon monoxide
Answer: A
Thermal decomposition:
CaCO
X
3
CaO
+
CO
X
2
. Carbon dioxide leaves as gas and
CaO
stays behind.
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