Multiple choice

The function of a catalyst in a reaction is to

  1. decrease the rate of the reaction

  2. increase the rate of the reaction

  3. increase the pressure of the reactants

  4. decrease the pressure of the reactants
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A catalyst is a substance that increases the rate of a chemical reaction by providing an alternative pathway with a lower activation energy, without being consumed in the process.

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