Which of the following statements are correct about the Arrhenius equation?

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When Ea is zero, rate is independent of temperature

The Arrhenius constant becomes equal to rate constant at a very high temperature

Positive catalyst increases $E_{a}$ of the reaction

$e^{- E} a^{/ RT}$ represents the fraction of molecules having energy more than threshold energy

answer is A.

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Detailed Solution

According to Arhenius theory.

The Arrhenius constant becomes equal to rate constant at a very high temperature

When Ea is zero, rate is independent of temperature $e^{- E} a^{/ RT}$ represents the fraction of molecules having energy more than threshold energy

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