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50 ml of gaseous mixture of acetylene an...

50 ml of gaseous mixture of acetylene and ethylene if taken in a ratio of a:b requires 700 ml of air containing 20 % by volume `O_2` for complete combustion . Calculate the volume of air required for complete combustion of a mixture having ratio b:a.

A

700 ml

B

675 ml

C

135 ml

D

140 ml

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The correct Answer is:
B
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