Question

Which of the following is a drawback of collision theory?

(a) Proper orientation

(b) High activation energy

(c) Hard spheres

(d) Have energy equal to or greater than the threshold energy

I have been asked this question by my college professor while I was bunking the class.

This intriguing question originated from Collision Theory of Chemical Reactions topic in portion Chemical Kinetics of Chemistry – Class 12

Answer 1

Correct answer is (c) Hard spheres

The best explanation: In Collision theory, activation energy and proper orientation of molecules together determine the criteria for an effective collision but it has a certain drawback as it considers atoms/molecules to be hard spheres and ignores their spherical aspects.