$R \rightarrow P$ is a first order reaction. For this reaction,a graph of $\ln [R]$ (on $y$-axis) and time (on $x$-axis) gives a straight line with a negative slope. The intercept on the $y$-axis is equal to ($k =$ rate constant):
- A$\ln [R]_0$
- B$[R]_0$
- C$k \times 2.303$
- D$\frac{k}{2.303}$
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