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A mixture of C(2)H(2) and C(3)H(8) occu...

A mixture of `C_(2)H_(2)` and `C_(3)H_(8)` occupied a certain volume at 80 mm Hg. The mixture was completely burnt to `CO_(2)` and `H_(2)O(l)`. When the pressure of `CO_(2)` was found to be 230 mm Hg at the same temperature and volume, the mole fraction of `C_(3)H_(8)` in the mixture is :

A

0.2

B

0.8

C

0.25

D

0.75

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The correct Answer is:
A
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