Question

`A` mixture of `100ml` of `CO,CO_(2)` and `O_(2)` was sparked. When the resulting gaseous mixture was passed through `KOH` solution, contraction in volume was found to be `80ml`, the composition of initial mixture may be (in the same order)
A. `30ml, 60ml, 10ml`
B. `30ml, 50ml, 20ml`
C. `30ml, 60ml, 20ml`
D. `30ml, 40ml, 30ml`

Answer 1

Correct Answer - A::B
`CO+CO_(2)+O_(2)=100`
`x+y+z=100mL`
Case-I :- `L.R.`
`CO+(1)/(2)O_(2)rarrCO_(2)`
`x" "(x)/(2)" "x`
`KOH` absorbed `CO_(2) = x+y`
`{:( " "x+y=80),(therefore" "x+y+z=100),(" "z=20mL):}`
Check option
Case-II :- `L.R`.
`CO+(1)/(2)O_(2)rarrCO_(2)`
`2z" "z" "2z`
`KOH` abosorbed `CO_(2)=y+2z`
`y + 2z =80`
`therefore x+y+z=20`
Check option