question_answer

  The time for half life period of a certain reaction \[A\to \] Products is 1 hour. When the initial concentration of the reactant 'A', is 2.0 \[mol~{{L}^{-1}}\],how much time does it take for its concentration come from 0.50 to\[0.25\text{ }mol\text{ }{{L}^{-1}}\]if it is a zero order reaction?       AIEEE  Solved  Paper-2010

A) 1 h         

B)                        4 h                         

C) 0.5 h     

D)        0.25 h