Question

When steam is passed over red hot coke, then a mixture of carbon monoxide and hydrogen gas is formed. This is called _____ gas.

• A. Industrial gas
• B. Syngas
• C. Producer gas
• D. Water gas

Answer 1

The correct option is D

Water gas

Coke is an amorphous allotrope of carbon (C). When steam $\left(H_{2}O\right)$ is passed over red hot coke, then a mixture of carbon monoxide $\left(CO\right)$ and hydrogen $\left(H_2\right)$ gas is formed. This gas is called water gas.

• Natural gas is methane $\left(C{H}_4\right)$ and is produced when plant and animal matter decomposes anaerobically.
• Producer gas is a mixture of carbon monoxide, nitrogen and hydrogen gas. It is obtained when steam mixed with air is passed through red hot coke.
• Industrial gases are manufactured for use in various industries. For example, hydrogen, helium, etc.