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COMEDK · Chemistry · 19. Chemical Kinetics

Match the details given in Column I with those given in Column II

S.No.Column IS.No.Column II
AFor complex reactions order is determined byPRate of reaction.
BFor Zero order reaction unit of k is same as that ofQSlope \(= k/2.303\)
CMathematical expression which gives relationship between rate of reaction and concentrations of reactants is calledRSlowest rate determining step.
DFor a first order reaction plot of \(\log[R_0]/[R]\) vs time givesSRate law.

  1. A \(\mathrm{A}=\mathrm{R} \quad \mathrm{B}=\mathrm{S} \quad \mathrm{C}=\mathrm{Q} \quad \mathrm{D}=\mathrm{P}\)
  2. B \(\mathrm{A}=\mathrm{R} \quad \mathrm{B}=\mathrm{P} \quad \mathrm{C}=\mathrm{S} \quad \mathrm{D}=\mathrm{Q}\)
  3. C \(\mathrm{A}=\mathrm{S} \quad \mathrm{B}=\mathrm{R} \quad \mathrm{C}=\mathrm{P} \quad \mathrm{D}=\mathrm{Q}\)
  4. D \(\mathrm{A}=\mathrm{S} \quad \mathrm{B}=\mathrm{R} \quad \mathrm{C}=\mathrm{Q} \quad \mathrm{D}=\mathrm{P}\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\mathrm{A}=\mathrm{R} \quad \mathrm{B}=\mathrm{P} \quad \mathrm{C}=\mathrm{S} \quad \mathrm{D}=\mathrm{Q}\)

Step-by-step Solution

Detailed explanation

For complex reactions, the overall rate of the reaction is determined by the slowest step, which is known as the rate determining step. Thus, A matches with R. For a zero order reaction, the rate is equal to the rate constant \(k\). The unit of rate is…