Half life of zero order reaction A → product is 1 hour, when initial concentration of reactant is 2.0 mol L⁻¹. The time required to decrease concentration of A from 0.50 to 0.25 mol L⁻¹ is:

Chemical Kinetics: JEE Main 2025 Chemistry question

JEE Main 2025 · 4 Apr, Evening shift · Q65

JEE Main 20254 Apr, Evening shiftChemistryMediumChemical Kinetics62× since 2002

Half life of zero order reaction

\mathrm{A \rightarrow product}

is 1 hour, when initial concentration of reactant is

2.0\ \mathrm{mol\,L^{-1}}

. The time required to decrease concentration of A from 0.50 to

0.25\ \mathrm{mol\,L^{-1}}

is :