Ncert Exercises & Solutions

An incorrect statement about the collision theory of chemical reaction is:

1.	It considers reacting molecules or atoms to be hard spheres and ignores their structural features.
2.	The number of effective collisions determines the rate of reaction.
3.	The collision of atoms or molecules possessing sufficient threshold energy results in product formation.
4.	Molecules should collide in the proper orientation for the collision to be effective with sufficient threshold energy and proper orientation.