Question

If the rate of a reaction is equal to the rate constant, the order of the reaction is:

• A. 2
• B. 3
• C. 1

Answer 1

Rate of reaction is equal to the rate constant for zero order reaction.
Let us consider the following hypothetical change.
$A\to B+C$
Suppose this reaction is zero order, then
rate $\propto [A{]}^0$
$\therefore rate=k[A{]}^0=k$