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Carbogen is a mixtrue of O2 and CO2 . It...

Carbogen is a mixtrue of `O_2` and `CO_2` . It and `CO_2` . It is used for artificial respireation . What is the precenttage `CO_2` in this mixture ?

A

`O_(2) & H_(2)`

B

`CO_(2) & O_(2)`

C

`O_(2)` & Air

D

`O_(2)` & Ne

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The correct Answer is:
B
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