$\mathrm{A} \rightarrow$ products, is a first order reaction. The following data is obtained for this reaction at $\mathrm{T}(\mathrm{K})$. The value of $\mathrm{x}: \mathrm{y}$ is

Rate $\left(\mathrm{mol} \mathrm{L}^{-1} \min ^{-1}\right)$	[A]
0.2	0.02M
0.4	xM
1.0	yM

• A

  $1: 5$
• B

  $2: 3$
• C

  $5: 2$
• Correct answer
  D

  $2: 5$

Hence, the correct answer is option: 'D'.