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Q.

How many moles of  CO2 gas obtained from the decomposition of 5 moles of calcium carbonate

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a

5 moles

b

2.5 moles

c

6.5 moles

d

2 moles

answer is A.

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Detailed Solution

CaCO3→CaO+CO2

1 mole of CaCO3  ------  1 mole of CO2

5 moles of CaCO3 ------ 5 moles of CaCO3

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