the correct difference between first and second order reactions is that

Options

A. The rate of a first-order reaction does not depend on reactant concentration, the rate rate of a second-order reaction does depend on reactant concentration.
B. The half life of a first-order reaction does not depend on `[A]_(0)`, the half life of a second order-reaction does depend on `[A]_(0)`, the half-life of a second-order reaction does depend on `[A]_(0)`
C. a first-order reaction can be catalysed, a second-order reaction cannot be catalysed
D. The rate of a first-order reaction does not depend on reactant concentration, the rate of a second-order reaction does not depend on reactant concentration.

Answer

B

Explanation

b) it is the correct answer.
For first order reaction: `t_(1//2) = 0.693/k`
For second order reaction:
`t_(1//2) = 1/(k[A]_(0))`