Q.
The weight of lime obtained by heating 200 kg of 95% pure lime stone is
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a
98.4 kg
b
106.4 kg
c
112.8 kg
d
122.6 kg
answer is B.
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Detailed Solution
2OO kg of 95% pure means, 95100×200=190 kgCaCO3⟶ΔCaO+CO2(40+12+3×16) (40+16)100 56190 w∵ 100 g of CaCO3 on heating gives 56g of lime∴ 190000 g of CaCO3 on heating will give lime =56×190000100 = 106,400 g =106.4kg
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