The rate of reaction between two reactants A and B decreases by a factor of 4 , if the concentration of reactant B is doubled. The order of this reaction with respect to reactant B is

Step-by-step solution

A+B Product Rate [A][B]⁻²...(i) The rate decreases by factor 4 if the concentration of reactant ' B ' is doubled. So, Rate [A][2 B]⁻² [A][B]⁻² 4 ...(ii) Hence, order of reaction wrt reactant B is -2