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(c) Heating of limestone. चूनापत
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Answer:
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Explanation:
The balanced chemical reaction is CaCO
3
→CaO+CO
2
.
22 g of CO
2
corresponds to 0.5 moles.
This will be produced by 0.5 moles of calcium carbonate i.e. 50 g of CaCO
3
.
The percentage purity of limestone is
60
50
×100=83.3%.
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