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Gaseous benzene reacts with hydrogen gas...

Gaseous benzene reacts with hydrogen gas in the presence of nickel catalyst to give gaseous cyclohexane. A mixture of benzene vapour and hydrogen had a pressure of 60 mm Hg in vessel. After all benzene converted to cyclohexane, the pressure of the gas was 30 mm Hg in the same volume and at the same temperature. What fraction (by mole) of the original mixture was benzene?

A

`1//3`

B

`1//4`

C

`1//5`

D

`1//6`

Text Solution

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The correct Answer is:
D
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