For the reaction A + B → C, it is found that doubling the concentration of A, increases the rate 4 times and doubling the concentration of B doubles the reaction rate. What is the overall order of the reaction ?

Q:  For the reaction A + B → C, it is found that doubling the concentration of A, increases the rate 4 times and doubling the concentration of B doubles the reaction rate. What is the overall order of the reaction ?

(A) 3/2                                         

(B) 4

(C) 1                                             

(D) 3

Solution: Order with respect to A = – 2 , order with respect to B = 1 overall order = 3

Ans: (D)