Question

A mixture of gases contains H₂ and O₂ gases in the ratio of 1 : 4 (w/w). What is the molar ratio of the two gases in the mixture? 

(a) 16:1 

(b) 2:1 

(c) 1:4 

(d) 4:1

Answer 1

The correct option is : (d) 4 : 1

Explanation :

Number of moles of H₂ = 1/2

Number of moles of O₂ = 4/32 

Hence, molar ration = 1/2 : 4/32 = 4 : 1