If \( \mathrm{E}_{\mathrm{f}} \) and \( \mathrm{E}_{\mathrm{r}} \) are the activation energies o...

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If \( \mathrm{E}_{\mathrm{f}} \) and \( \mathrm{E}_{\mathrm{r}} \) are the activation energies of forward and reverse reactions and the reaction is known to be exothermic, then
(1) \( E_{f}E_{r} \)
(2) \( \mathrm{E}_{\mathrm{f}}\mathrm{E}_{\mathrm{r}} \)
(3) \( E_{f}=E_{r} \)
(4) No relation can be given between \( \mathrm{E}_{\mathrm{f}} \) and \( \mathrm{E}_{\mathrm{r}} \) as data is not sufficient
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