In a reactdion A `to` B, if the concentration of reactant is increased by 9 times then rate of reaction increases 3 times. What is the order of reaction?

Options

A. 2
B. 3
C. `1/2`
D. `1/3`

Answer

C

Explanation

`r= K[A]^n`
or `r. = 3r = k [9A]^(1//2)`