Question

Sita has to select one reaction out of zero order, first order, second order, and a third order reaction such that, the rate of reaction is constant throughout the reaction. Which one should she select?

• A. Zero order reaction
• B. First order reaction
• C. Second order reaction
• D. Third order reaction

Answer 1

The correct option is A Zero order reaction

Rate equation for zero order reaction is

$Rate=k[Reactant{]}^{\circ }$

Rate = k

as k is a rate constant, the rate of a zero order reaction is always constant.