For the reaction $X + Y \rightarrow Z$,the rate law is $r = K[X][Y]$. If the concentration of $Y$ is increased significantly,what will be the order of the reaction?

If in a certain reaction,two different reactants take part,then:

In a reaction,the concentration of reactant is increased two times and three times,then the increases in the rate of reaction were four times and nine times respectively. The order of reaction is:

If $a$ is the initial concentration of the reactant,the half-life period of the reaction of $n^{th}$ order is inversely proportional to

The rate of the reaction becomes twice when the concentration of reactant becomes $8$ times,then the order of the reaction is:

Which of the following determines the rate of a multistep reaction?