Question

When initial concentration of the reactant is doubled, the half-life period of a zero order reaction

• A. Is halved
• B. Is doubled
• C. Is tripled
• D. Remains unchanged

Answer 1

The correct option is B Is doubled

$(t_{\frac{1}{2}}{)}_{zero}=\frac{[A{]}_0}{2k}$
As the half-life of a zero order reaction is directly proportional to initial concentration.
$\therefore$
If $\left[A_0\right]$= double then, $t_{\frac{1}{2}}=\text{doubled}$.