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Question

26 cc of CO2 are passed over red hot coke. The volume of CO evolved is:
C(s)+CO2(g)2CO(s)

A
15 CC
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B
10 CC
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C
32 CC
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D
None of these
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Solution

The correct option is D None of these
Let us consider the problem.
Let us consider
CO2+C=2CO
Therefore,
22.4litreCO2gives2×22.4litre
1litre(2×22400)22400
26ccCO2givesCO=(2×22400×26)22400=52ccCO

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