Question

The mass ratio of Carbon to Hydrogen in Methane $C{H}_4$ is 3:1. How much amount of hydrogen is required to react with 36 gms of carbon to form methane?

• A. 10 gm
• B. 12 gm
• C. 16 gm
• D. 30 gm

Answer 1

The correct option is B

12 gm

The chemical formula of Methane is $C{H}_4$. The carbon to hydrogen mass ratio in it is 3:1.
It requires 3 grams of Carbon for one gram of Hydrogen. So, for 36 grams of Carbon, we require 12 grams of Hydrogen.