Question

Which of the following are the common ways to produce H2 gas in a fuel cell?

(a) Coal and biomass gasification

(b) Electrolysis and absorption

(c) Steam reforming and electrolysis

(d) Electromagnetism and steam reforming

I had been asked this question during an online interview.

My doubt stems from Electrochemistry topic in section Electrochemistry of Chemistry – Class 12

Answer 1

Correct choice is (c) Steam reforming and electrolysis

Easiest explanation: Since hydrogen does not exist as a gas on Earth, it must be separated from other elements. Hydrogen atoms can be separated from water, natural gas molecules or biomass. The two most common ways to produce hydrogen are steam reforming (using high-temperature steam to produce hydrogen from natural gas) and electrolysis (splitting water).