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

Answer

D

Explanation

`OR = (1)/(2) + (1)/(3) + (1)/(4) = (13)/(12)`