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Chemistry · 2023 · 1 mark
CBSE 2023 · Region 5 · Set 2 · Q16
Assertion (A): The half life of a reaction is the time in which the concentration of the reactant is reduced to one half of its initial…
Assertion (A) : The half life of a reaction is the time in which the concentration of the reactant is reduced to one half of its initial concentration.
Reason (R) : In first order kinetics when concentration of reactant is doubled, its half life is doubled.
Official answer
(C)
Assertion (A) is true, but Reason (R) is false.
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CBSE Class 12 Chemistry past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.