Question

For the reaction A + B - products, it is observed that
(a) On doubling the initial concentrations of both A and B, the rate of
reaction becomes four times
(b) On doubling the initial concentration of B only, the rate of reaction
is also doubled
The expression for this reaction rate is given by
Rate = k [A] [B]"
Rate = k [A]2 [B]1
Rate = k [A]' [B]2
Rate = k [A]º [B]​

Answer 1

Answer:

Answer is A.

Explanation:

If the rate increases four times on doubling concentration of one reactant, the order is 2nd wrt to that reactant. but here, rate is doubling on doubling conc. of B, and becoming four times on doubling both reactants.

So the order wrt to both A and B is 1, and overall order is 2.