Question

What is the mole ratio of hydrogen to carbon dioxide in the process of catalytic hydrogenation of carbon monoxide?

(a) 1.25

(b) 2.25

(c) 3.25

(d) 4.25

Answer 1

The correct answer is (b) 2.25

To elaborate: Mole ratio of hydrogen to carbon dioxide is 2.25. The presence of excess hydrogen is to prevent catalyst fouling with high molecular weight compounds that adsorbs on catalyst.