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JAMB Chemistry 1984 Question 23

Question 23

Carbon and its Compounds

Which of the following statements is NOT true of carbon monoxide?

  1. A.CO is poisonous
  2. B.CO is readily oxidized at room temperature by air to form CO2
  3. C.CO may be prepared by reducing CO2 mixed with coke heated to about 1000°C
  4. D.CO may be prepared by heating charcoal with a limited amount of O2
  5. E.CO is a good reducing agent.
Show the answer and explanation

Answer: B (CO is readily oxidized at room temperature by air to form CO2)

Explanation

Carbon monoxide only burns to CO2 when it is ignited; it is not readily oxidised by air at room temperature. The other statements are true.