Question

When steam is passed over red hot coke, what is produced?

• A. Carbon monoxide and hydrogen
• B. Carbon Dioxide and Hydrogen
• C. Water gas
• D. Syngas

Answer 1

Answer: (A), (C)

The correct options are
A

Carbon monoxide and hydrogen

C

Water gas

When steam is passed over red-hot coke, water gas is formed which consists of carbon monoxide and hydrogen.

$C$ + $H_{2}O$ $\to$ $CO$ + $H_2$

Syngas also consists of carbon monoxide, hydrogen along with a small fraction of carbon dioxide and syngas is produced from natural gas (via the steam reforming reaction).

$C{H}_4$ + $H_{2}O$ $\to$ $CO$ + $3H_2$