What happens if the amount of energy that is absorbed by the reactance is less than the activation energy? A) The reaction does not occur
B) The reaction occurs very quickly
C) The reaction occurs very slowly
D) The reaction occurs spontaneously

Answer 'A' is correct

Explanation:

For any reaction to occur, 4 events must occur simultaneously. These are...

1. reacting compounds must be at concentrations that allow them to find on another. Such is concentration dependent and is referred to as Kinetic Feasibility.

2. reacting compounds must collide in very specific orientations for bonding to occur. The reacting compounds have unique molecular geometries such that bonding only occurs if the compounds collide in a required orientation.

3. The reacting compounds must have a natural tendency to react and form chemical bonds.

4. The reacting system must be at sufficient temperature (which delivers sufficient energy (ΔEₐ) such that events 1, 2 and 3 have the highest probability of occurring simultaneously. This occurs at the activation energy point (k = A·e^(-ΔEₐ/RΔT) => lnΔk = lnA - ΔEₐ/RΔT) =>  The Arrhenius Equation of Kinetic Reactivity.