Question

Which one of the following is wrong about molecularity of a reaction?

• A. It may be whole number or fractional
• B. It is calculated from reaction mechanism
• C. It is the number of molecules of the reactants taking part in a single step chemical reaction
• D. It is always equal to the order of elementary reaction.

Answer 1

Answer: (A)

Molecularity of a reaction can never be fractional. It is always a whole number.