Question

$5A⟶Product$
In above reaction, half-life period is directly proportional to initial concentration of reactant. The initial rate of reaction is $400$ $mol{litre}^{-1}{min}^{-1}$.
Then the order of reaction:

• A. 0
• B. 1
• C. 2
• D. 3

Answer 1

The correct option is A 0

The half-life period is directly proportional to the initial concentration of the reactant. Also, the unit of the rate constant is $mollitr{e}^{-1}mi{n}^{-1}$. These are the characteristics of a zero-order reaction.

Hence, the correct option is $\text{A}$