passwella.
Menu

Unilorin Post-UTME Chemistry 2023 (Model questions) Question 3

Question 3

Rates of Reaction

The rate of a chemical reaction can be increased by

  1. A.increasing the temperature
  2. B.decreasing the concentration of reactants
  3. C.adding a catalyst
  4. D.two of the above
Show the answer and explanation

Answer: D (two of the above)

Explanation

Both raising the temperature and adding a catalyst speed up a reaction; lowering the concentration slows it. So 'two of the above' is right.