The concentration of the reactant R with time t for two different reactants (i) and (ii) are given in the plots. The respective orders of the reactants are:

Step-by-step solution

For a zero order reaction, the integrated rate law is given by [R] = [R]₀ - kt . A plot of [R] versus time t is a straight line with a negative slope equal to -k . This matches graph (i). For a first order reaction, the integrated rate law is given by [R] = [R]₀ - kt . A plot of [R] versus time t is a straight line with a negative slope equal to -k . This matches graph (ii). Therefore, the order of reaction for graph (i) is 0 and for graph (ii) is 1. Answer: 0,1