WAEC Agricultural Science 2016 Question 14

Question 14

Rocks and Soil Formation

In chemical weathering of rocks, the equation Fe2O3 + 3H2O → Fe2O3.3H2O represents

  1. A.carbonation.
  2. B.hydration.
  3. C.solution.
  4. D.oxidation.
Show the answer and explanation

Answer: B (hydration.)

Explanation

Water is added to the mineral without breaking it into new substances: hydration.