For a reaction of type `A +B rarr` products it is observed that doubling concentration of A causes the reaction rate to be four times as great, but doubling amount of B does not affect the rate,The rate equation is

Options

A. Rate `= k [A][B]`
B. Rate `=(k)/(4)[A]^(2)`
C. Rate `=k[A]^(2)[B]^(0)`
D. rate `=k[A]^(2)[B]^(2)`

Answer

C

Explanation

`r prop [A]^(2)` and `r prop [B]^(0)`
`therefore r = k [a]^(2) [B]^(0)`