Question

When a mixture of air and steam is passed over red hot coke, the outgoing gas is

• A. producer gas
• B. water gas
• C. coal gas.
• D. Both (A) and(B)

Answer 1

The correct option is A producer gas

When a mixture of air and steam is passed thorough red hot coke, the gas which is produced is called producer gas. The following reaction takes place.

$2C\left(s\right)+O_2\left(g\right)+4N_2\left(g\right)\stackrel{1273K}{\to }2CO\left(g\right)+4N_2\left(g\right)$.

Hence, (a) is the correct answer.