Practice Quiz

CLEP Chemistry Practice Test

Category - Chemistry

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Which of the following statements describes the role of a buffer?
  1. It increases the rate of a reaction.
  2. It keeps the pH of a solution within a small range.
  3. It changes the oxidation states of elements in a compound.
  4. It shifts the reaction equilibrium to favor more product formation.
Explanation
Answer: B - It keeps the pH of a solution within a small range.
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