Question

For producing the effective collisions, the colliding molecules must posses:

• A. a certain minimum amount of energy
• B. energy equal to greater than threshold energy
• C. proper geometry
• D. threshold energy and proper orientation

Answer 1

The correct option is D threshold energy and proper orientation

For a reaction to occur the reactants particles must collide. However only a certain fraction of the total collisions are successful to cause a chemical change. The effective collisions must posses
a) Energy should be $\ge$ threshold energy
b) Molecule should have proper orientation.