Question

For the reaction A + 2B → C, rate is given by R = [A] [B]² then the order of the reaction is

(a) 3 

(b) 6

(c) 5 

(d) 7.

Answer 1

(a) : Order is the sum of the power of the concentrations terms in rate law expression.
R = [A] × [B]²
Thus, order of reaction = 1 + 2 = 3.