For a certain chemical reaction, variation in concentration In [R] vs time [s] plot is given in figure:
(i) What is the order of the reaction?
(ii) Give the relationship between k and `t_(1//2)` (half-life period).
(iii) Draw the plot of log `[R]_(0)//[R]` vs time t(s).

Explanation

(i) It is a first order reaction.
(ii) The relation k and `t_(1//2)` is `k=(0.693)/(t_(1//2))`
(iii) Plot of log `[R]_(0)//[R]` vs time t(s) is shown below: