Question

Which of the following types of reaction is least likely to be the rate-determining step of a reaction mechanism?

• A. $A\to B+C$
• B. $A+B\to C$
• C. $AB+C\to AC+B$
• D. $A+O_2\to A{O}_2$
• E. $AB+CD\to AD+CB$

Answer 1

The correct option is A $A\to B+C$

$A⟶B+C$ (is least likely to be $RDS$)

Because there is only one reactant. So, reactant probability is less.