Question

If the half-time for a particular reaction is found to be constant and independent of the initial concentration of the reactants, then the reaction is of

• A. first order
• B. zero order
• C. second order
• D. none of these

Answer 1

Answer: (A)

first order

Answer 2

For first order reaction the half-life period is independent of the initial concentration of the reactants. $t_{1/2}=\frac{0.693}{k}$