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JAMB Chemistry 2021 Question 18

Question 18

Hydrocarbons

Alkenes

  1. A.are all gases
  2. B.have the general formula CnH2nO2
  3. C.are usually soluble in water
  4. D.contain only carbon and hydrogen
Show the answer and explanation

Answer: D (contain only carbon and hydrogen)

Explanation

Alkenes are hydrocarbons (general formula CnH2n), made only of carbon and hydrogen; higher alkenes are liquids or solids and they are insoluble in water.