Question

# In a reaction container 132 gm of carbon dioxide and 128 gm of calcium oxide are mixed for the formation of CaCO3 gas. What is the limiting reagent and how much CaCO3 is formed in the reaction?

A
CO2 is the limiting reagent and 100 gm of CaCO3 are formed
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B
CaO is the limiting reagent and 200 gm of CaCO3 are formed
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C
CO2 is the limiting reagent and 200 gm of CaCO3 are formed
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D
CaO is the limiting reagent and 150 gm of CaCO3 are formed
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Solution

## The correct option is B CaO is the limiting reagent and 200 gm of CaCO3 are formedThe given reaction is, CaO+CO2→CaCO3 Again, 132 gm of carbon dioxide =13244=3 mol 128 gm of calcium oxide =12864=2 mol So CaO is the limiting reagent. From the stoichiometry of the reaction CaCO3 formed =2 mol Again, 2 mol of CaCO3=2×100=200 gm

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