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By the reaction of carbon and oxygen , a...

By the reaction of carbon and oxygen , a mixture of CO and `CO_(2)` is obtained . What is the composition (% by mass) of the mixture obtained when 20 gm of `O_(2)` reacts with 12 gm of carbon ?

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The correct Answer is:
`%CO=65.625;%CO_(2)=34.375`
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