Consider a reaction $A+R \rightarrow$ Product. The rate of this reaction is measured to be $k[A][R]$. At the start of the reaction, the concentration of $R,[R]_0$, is $10-$times the concentration of $A,[A]_0$. The reaction can be considered to be a pseudo first order reaction with assumption that $k[R]=k^{\prime}$ is constant. Due to this assumption, the relative error $(in \%)$ in the rate when this reaction is $40 \%$ complete, is $....$
$[ k$ and $k^{\prime}$ represent corresponding rate constants$]$
$[ k$ and $k^{\prime}$ represent corresponding rate constants$]$
- A$5.16$ or$5.17$
- B$4.16$ or $4.17$
- C$6.16$ or $6.17$
- D$9.16$ or $9.17$
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