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JAMB Chemistry 2007 Question 11

Question 11

Carbon and its Compounds

Use the diagram below to answer questions 11 and 12.
The fuel gas labelled L is

Diagram for this question
  1. A.water gas
  2. B.hydrogen
  3. C.nitrogen
  4. D.carbon(IV) oxide.
Show the answer and explanation

Answer: A (water gas)

Explanation

When air is blown over hot coke, producer gas forms; when steam (M) is blown over hot coke, water gas (CO + H2) is formed and leaves as L.