$A \rightarrow$ products is a first-order reaction. The following data is obtained for this reaction at $T \ K$. The value of $x : y$ is:
Rate $(\text{mol } L^{-1} \ \text{min}^{-1})$ $[A]$ $0.2$ $0.02 \ M$ $0.4$ $x \ M$ $1.0$ $y \ M$
| Rate $(\text{mol } L^{-1} \ \text{min}^{-1})$ | $[A]$ |
|---|---|
| $0.2$ | $0.02 \ M$ |
| $0.4$ | $x \ M$ |
| $1.0$ | $y \ M$ |
- A$1 : 5$
- B$2 : 3$
- C$5 : 2$
- D$2 : 5$
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