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10 g of a mixture of hexane and ethanol ...

10 g of a mixture of hexane and ethanol are reacted with sodium to give 200 Ml hydrogen at `27^@` and 760 mm pressure. What is the percentage of ethanol into the mixture?

A

`4.6%`

B

`8.13%`

C

`9.21%`

D

`7.48%`

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The correct Answer is:
D
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