A reaction on increasing the concentration of reactant by 8 times the rate of reaction gets doubled. The order of reaction

In a reaction A rarr B ,when the concentration of reactant is made "8" times,the rate got doubled.The order of reaction is "

If the concentration of the reactants is increased, the rate of reaction for first order-

The rate of a reaction increases eight times when the concentration of the reactant increases four times. The order of the reaction is

In a reaction A to B, the rate of reaction increases eight times on increasing the concentration of the reactant four times, then order of reaction is:

In a reaction A to B the rate of reaction increases two times on increasing the concentration of the reactant four times, then order of reaction is