Question

`20mL` of a mixture of `CO` and `H_(2)` were mixed excess of `O_(2)` and exploded & cooled. There was a volume contraction of 23mL. All volume measurements corresponds to room temperature `(27^(@)C)` and one atmospheric pressure. Determine the volume ratio `(V_(1):V_(2) "of" Co` anf `H_(2)` in the original mixture .
A. `6.5 : 13.5`
B. `5 :15`
C. `9 :11`
D. `7 : 13`

Answer 1

Correct Answer - D

`2x+3(80-x)=230`
`x=10`
fraction of `C_(2)H_(2)=(10)/(80)=0.125`