A) A first-order reaction can catalyzed; a second-order reaction cannot be catalyzed
B) The half-life of a first-order reaction does not depend on \[{{\text{ }\!\![\!\!\text{ A }\!\!]\!\!\text{ }}_{0}}\]; the half-life of a second-order reaction does depend on \[{{\text{ }\!\![\!\!\text{ A }\!\!]\!\!\text{ }}_{0}}\]
C) The rate of a first-order reaction does not depend on reactant concentrations; the rate of a second-order reaction does depend on reactant concentrations
D) The rate of a first-order reaction does depend on reactant concentrations; the rate of a second-order reaction does not depend on reactant concentrations.
Correct Answer: B
Solution :
| [b] For first order reaction \[{{t}_{1/2}}=\frac{0.693}{k}\] which is independent of initial concentration of reactant. |
| For second order reaction \[{{t}_{1/2}}=\frac{1}{k[{{A}_{0}}]}\] which depends on initial concentration of reactant. |
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