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JAMB Chemistry 1998 Question 45

Question 45

Hydrocarbons

The products obtained when a pure hydrocarbon is burnt in excess oxygen are

  1. A.carbon and hydrogen
  2. B.carbon and water
  3. C.Carbon (II) oxide and hydrogen
  4. D.carbon (IV) oxide and water.
Show the answer and explanation

Answer: D (carbon (IV) oxide and water.)

Explanation

Complete combustion of a hydrocarbon turns all the carbon into carbon(IV) oxide and all the hydrogen into water.