Question

A following mechanism has been proposed for a reaction
2A + B$\to$ D + E
A + B$\to$ C + D (slow)
A + C $\to$ E (fast) .
The rate law expression for the reaction is

• A. $r = k [A]^2 [B]$
• B. $r = k [A] [B]$
• C. $r = k [A]^2$
• D. r = k [A] [C]

Answer 1

Answer: (B)

Rate is controlled by slowest step