The halflife of a chemical reaction is experimentally determ
The half-life of a chemical reaction is experimentally determined to decrease. What is the order of the reaction?
 A Zero Order
 B First Order
 C Second Order
 D Unknown Order
Solution
Ans : A) Zero Order
The half life of a zero order reaction decreases as the concentration of the reactants decrease , due to the progress of the reaction.
It is given as :
t1/2 = [A]o / 2k

