CBSE 2026 · Region 1 · Set 1 · Q4 · 1 mark
Which of the following represents the fraction of molecules with energies equal to or greater than $\displaystyle \mathrm{E}_{\mathrm{a}}$ ?
Official answer
From CBSE’s own marking scheme for this paper.
(B)
$\displaystyle \mathrm{e}^{-\mathrm{E}_{\mathrm{a}} / \mathrm{RT}}$
Chemical KineticsTemperature Dependence of the Rate of a ReactionRemembermcqmedium
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CBSE Class 12 Chemistry past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.