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At 300 K and 1 atm, 15 mL of a gaseous h...

At `300 K` and `1 atm, 15 mL` of a gaseous hydrocarbon requires `375 mL` air containing `20% O_(2)` by volume for complete combustion. After combustion, the gases occupy `330 mL`. Assuming that the water formed is in liquid form and the volumes were measured at the same temperature and pressure, the formula of the hydrocarbon is

A

`C_4H_8`

B

`C_4H_10`

C

`C_3H_6`

D

`C_3H_8`

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