The correct difference between first and second order reactions is that

Options

A. The rate of a first-order reaction does not depends on reactant concentrations, the rate of second-order reaction does depend on reactant concentrations
B. The half-life of a first-order reaction does not depends on `[A]_0`, the half-life of a second order reaction of depend on `[A]_0`
C. The rate of a first-order reaction does depend on reaction concentrations, the rate of a second-order reaction is not depend on reactant concentrations
D. A first-order reaction can catalyzed, a second-order reaction cannot be catalyzed.

Answer

A

Explanation

For first order reaction, `t_(1//2) = (0.693)/( k)` which is independent initial concentration of reactant.
For second order reaction, `t_(1//2) = (1)/( k[A_0])`, which depends on initial concentration of reactant.