At 300 K and 1 atmospheric pressure, 10 ...

At 300 K and 1 atmospheric pressure, 10 mL of a hydrocarbon required 55 mL of `O_(2)` for complete combustion, and 40 mL of `CO_(2)` is formed. The formula of the hydrocarbon is:

A

`C_(4)H_(8)`

B

`C_(4)H_(7)`

C

`C_(4)H_(10)`

D

`C_(4)H_(6)`

Text Solution

Verified by Experts

The correct Answer is:

D

`C_(x)H_(y) + (x+y/4) O_(2) to xCO_(2) + y/2 H_(2)O`
`10 x = 40 or x=4`
`10(x+y/4)= 55` or `(4+y/4) = 5.5`
`y/4 = 5.5-4=1.5 or y=6`
`therefore` Formula: `C_(4)H_(6)`

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