JAMB Chemistry 1998 Question 50

Question 50

Hydrocarbons

Which of the following is true concerning the properties of benzene and hexane?

  1. A.Both undergo substitution reaction.
  2. B.Both undergo addition reaction
  3. C.Both are solids
  4. D.Both can decolourize bromine water.
Show the answer and explanation

Answer: A (Both undergo substitution reaction.)

Explanation

Hexane is saturated and benzene is very stable, so both mainly undergo substitution reactions (e.g. with chlorine). Both are liquids and neither readily decolourizes bromine water.