Question

Half-life period of zero order reaction is

• A. Proportional to initial concentration of reactants
• B. Independent of initial concentration of reactants
• C. Inversely proportional to initial concentration of reactants
• D. Inversely proportional to square of initial concentration of reactants.

Answer 1

The correct option is A Proportional to initial concentration of reactants

$t_{\frac{1}{2}}\propto \frac{1}{a^{n-1}}$

n is the order of the reaction.

Therefore, as n =0, half-life period of zero order reaction
$t_{\frac{1}{2}}\propto \frac{1}{a^{n-1}}$

$t_{\frac{1}{2}}\propto a$.