The figure below depicts the change in the concentration of the species A and B for the reaction `A to B`, as a function of time. The point of intersection of the two curves represents

Options

A. `t_(1//4)`
B. `t_(1//3)`
C. `t_(1//2)`
D. The method cannot be used to predict fractional life time

Answer

C

Explanation

At the point of intersection, [A] = [B], i.e., half of the reactant has reacted. Hence, it represents `t_(1//2)`