For a certain reaction large fraction of molecules has energy more than the threshold energy, yet the rate of reaction is very slow. Why?
For a certain reaction large fraction of molecules has energy more than the threshold energy, yet the rate of reaction is very slow. Why?

The two most important responses that occur according to the collision theory are that the energy is greater than the activation energy and the correct position of the reactant molecules during a collision. Thus, when a reaction occurs then the molecules with no proper orientation reduces the reaction rate.