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. None of these gases

Answer 1

Answer: (D)

None of these gases

Answer 2

Producer gas ${(CO + N2)}$ is prepared by incomplete combustion of coal, coke or charcoal.Water gas ${(CO + H2)}$ is prepared by blowing steam through the layers of incandescent coal and coal gas (a mixture of ${H2, CH4, CO, C2H2, C2H4, CO2, N2}$ & ${O_2}$) is obtained by destructive distillation of coal at about 1000?C.