Which of the following describes a second-order reaction?

MCQ

Chemistry

A Rate is proportional to concentration squared

B Half-life is independent of initial concentration

C Rate law has only reactant concentration to the first power

D Plot of ln[A] vs time is linear

Explanation

A second-order reaction has Rate = k[A]^2 (or Rate = k[A][B]). The half-life t1/2 = 1/(k[A]0) depends on initial concentration, and a plot of 1/[A] vs time is linear.

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