Question
For a reaction $3 \mathrm{~A} \rightarrow 2 \mathrm{~B}$
The average rate of appearance of $\mathrm{B}$ is given by $\frac{\Delta[B]}{\Delta t}$. The correct relation between the average rate of appearance of $\mathrm{B}$ with the average rate of disappearance of A is given in option :