For a reaction `1//2A to 2B`, rate of disappearance of A is related to the rate of appearance of B by the expression:

Options

A. `-(d[A])/(dt) =1/2 (d[B])/(dt)`
B. `-(d[A])/(dt) =1/4 (d[B])/(dt)`
C. `(-d[A])/(dt) =(d[B])/(dt)`
D. `-(d[A])/(dt) =4(d[B])/(dt)`

Answer

B

Explanation

According to rate equation