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AP EAMCET · Chemistry · Chemical Kinetics

Which of the following is correct with respect to the graph given?
\(\begin{aligned} & {[R]=\text { Concentration at time ' } t \text { ' }} \\ & {[R]_0=\text { Initial concentration }}\end{aligned}\)


  1. A I, III represent first order and II represents zero order reaction
  2. B I, II represent zero order and III represents first order reaction
  3. C I, II, III all represent zero order reactions
  4. D I, II, III all represent first order reaction
Verified Solution

Answer & Solution

Correct Answer

(B) I, II represent zero order and III represents first order reaction

Step-by-step Solution

Detailed explanation

For a zero order reaction :- Rate \(=\mathrm{K}[\mathrm{A}]^0=\mathrm{K}\) Thus, the rate does not change with concentration. Therefore, I is of zero order reaction. For the integrated rate law of zero order :- \(\mathrm{C}=-\mathrm{kt}+\mathrm{C}_0\) Thus, the graph II is for a…