The density of the gaseous mixture of Hydrogen and Carbon-di-Oxide is $\large\frac{30\;g}{22.4\;l}$ at NTP. What is the % composition of Hydrogen and Carbon-di-oxide by volume in the mixture respectively?

Question

(A) 33.3, 66.7 (B) 50, 50 (C) 66.7, 33.3 (D) 40, 60