Question

Which of the following statements regarding molecularity of the reaction is wrong?

• A. It may be either whole number or fractional.
• B. It is calculated from the reaction mechanism.
• C. It depends on the rate determining step.
• D. It is number of molecules of reactants taking part in a single step chemical reaction.

Answer 1

The correct option is A It may be either whole number or fractional.

The minimum number of reacting particles (molecules, atoms or ions) that come together or collide in a rate determining step to form product or products is called the molecularity of a reaction.

As it is no. of molecules taking part in reaction is always in natural number. Hence it can not be fractional