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A 40 mL of a mixture of H(2) and O(2) at...

A 40 mL of a mixture of `H_(2)` and `O_(2)` at `18^(@)C` and 1 atm pressure was sparked so that the formation of water was complete. The remaining pure gas had a volume of 10mL at `18^(@)C` and 1 atm pressure. If the remaining gas was `H_(2)`. The mole fraction of `H_(2)` in the 40mL mixture is:

A

0.75

B

0.5

C

0.65

D

0.85

Text Solution

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The correct Answer is:
a
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