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JAMB Chemistry 1986 Question 26

Question 26

Environmental Pollution

The exhaust fumes from a garage in a place that uses petrol of high sulphur content are bound to contain

  1. A.CO and SO3
  2. B.CO and SO2
  3. C.CO,SO2 and SO3
  4. D.CO and H2S.
Show the answer and explanation

Answer: B (CO and SO2)

Explanation

Incomplete burning of petrol in an engine gives carbon (II) oxide, and the sulphur impurity burns to sulphur (IV) oxide, SO2.