Question

When the rate of reaction is equal to the rate constant then the order of the reaction is:

• A. Zero order
• B. First order
• C. Second order
• D. Third order

Answer 1

The correct option is A Zero order

For nth order reaction, $A\to B$
$Rate=k[A{]}^n$
According to question, Rate = k
Hence, n = 0
Therefore, the order of the reaction is zero.