For a chemical reaction `A rarr B`, it is found that the rate of reaction doubles when the concentration of `A` is increased `4` times. What is the order of reaction ? Suggest the rate law also.

Explanation

To determine the order of the reaction \( A \rightarrow B \) based on the information provided, we can follow these steps:

### Step 1: Write the rate law expression
The rate of the reaction can be expressed as:
\[ \text{Rate} = k[A]^x \]
where \( k \) is the rate constant, \( [A] \) is the concentration of reactant \( A \), and \( x \) is the order of the reaction with respect to \( A \).
...