👉 In organic chemistry, a hydrogenation is an energy transfer process that involves the addition of hydrogen atoms to a molecule. This process can be thought of as a type of chemical rearrangement where one atom gains electrons and becomes positively charged while another atom loses them and becomes negatively charged. For example, in the reaction between benzene (C6H6) and oxygen (O2), the oxygen atom gains an electron from each carbon atom to form two new carbon atoms with a charge difference of 0
