Multiple choice

Which of the following statements are true regarding a catalyst? I.          It is a substance which increases the rate of reaction. II.         It is a substance which reduces the activation energy. III.        It is a substance which increases the activation energy. IV.       It is a substance which is consumed in the reaction.

  1. I and II

  2. II and III

  3. III and IV

  4. I and IV
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A Correct answer
Explanation

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