In an auto engine having no pollution control device `5%` of the fuel `(C_(8)H_(18))` is left unburnt. Molar ratio under same `P` and `T` of `CO` and `C_(8)H_(18)` emitted in exhaust gas is .

Options

A. 100
B. 152
C. 50
D. 5

Answer

B

Explanation

Out of 100 mole of `C_(8)H_(18) 95` moles of `C_(8)H_(18)` burn to give `95 xx 8` mol of `CO_(2)` and 5 mol of `C_(8)H_(18)` remain unburnt.
Molar ratio in exhaust gases
`CO_(2) : C_(8)H_(18)`
`95 xx 8 : 5`
`152 : 5`