11.2 L of `CH_(4)` and 22.4 L of `C_(2)H_(6)` at STP are mixed. Then choose correct statement/ statements
A. Vapour density of the mixture is 12.67
B. Average molecular wt. will be less than 16
C. Average molecular wt. will be greater than 16 and less than 30
D. Average molecular weight will be greater than 30