Consider a reaction `X + Y rarr` Products. If the initial concentration of `X` increased to four times of its original value, keeping the concentration of `Y` constant, the rate of reaction increases four-fold. When the concentration of both `X` and `Y` becomes four times their original values the rate of reaction becomes `16` times its original values. The observed rate law is

Options

A. `k[X]^2[Y]^2`
B. `k[X]^(1)[Y]^2`
C. `k[X]^1[Y]^1`
D. `k[X]^2[Y]^1`

Answer

C