Question

The graph between concentration (x) of the product and time for the reaction $A\to B$, is given below (I). Hence the graph between $\frac{-dA}{dt}$ and time will be of the type:

• A.
• B.
• C.
  
• D.

Answer 1

The correct option is C


Since [x] increases with time uniformly, it is a zero order reaction. The change in concentration of A or B, i.e $\frac{-d\left[A\right]}{dt}$ or $\frac{d\left[B\right]}{dt}$ is constant. This will be shown by a straight line parallel to the time axis.