20 ml of a mixture of `CO_(2) & C_(2)H_(4)` was mixed with excess of `O_(2)` gas & was exploded. On bringing the solution back to the original room temperature a contraction of 12 ml was observed . What is the volume percentage of `CO_(2)` in the original mixture.

Options

A. 0.06
B. 0.14
C. 0.7
D. 0.3

Answer

0.03

Explanation

`{:(C_(2)H_(4),+,3O_(2),to,2CO_(2)(g),+,2H_(2)O(l)),(x,,3x,,2x,,2x=12):}`
`% CO_(2)=14/20xx100=70 %`