The rate of certain hypothetical reaction
`A+B+C rarr` Products, is given by
`r = -(dA)/(dt) = k[A]^(1//2)[B]^(1//3)[C]^(1//4)`
The order of a reaction is given by

Options

A. `1//2`
B. `13//12`
C. 1
D. 2

Answer

B

Explanation

The order of reaction is the sum of the powers of various concentration terms present in the rate law.
Order of reaction `=(1)/(2)+(1)/(3)+(1)/(4)`
`therefore` Order of reaction `=(13)/(12)`.