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JAMB Chemistry 1989 Question 45

Question 45

Chemical Bonding

The bond which joins two ethanoic acid molecules in the liquid state is

  1. A.a covalent bond
  2. B.an ionic bond
  3. C.a dative covalent bond
  4. D.a hydrogen bond.
Show the answer and explanation

Answer: D (a hydrogen bond.)

Explanation

The –OH hydrogen of one ethanoic acid molecule is attracted to the C=O oxygen of another, forming hydrogen bonds (the molecules pair up as dimers).