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WAEC Biology 2010 Question 25

Question 25

Food Substances and Enzymes

In which of the following organic compounds is the hydrogen-oxygen ratio equal to 2:1?

  1. A.Proteins
  2. B.Carbohydrates
  3. C.Lipids
  4. D.Vitamins
Show the answer and explanation

Answer: B (Carbohydrates)

Explanation

Carbohydrates have the general formula Cx(H2O)y, so hydrogen and oxygen are in the ratio 2:1, as in water.