Final answer:
Electrons are removed from a reactant during an oxidation reaction which is part of a redox process. Oxidation occurs in dehydration synthesis, where OH and H are removed, and Le Chatelier's principle is used to shift equilibrium in a reaction by removing products.
Step-by-step explanation:
Electrons are removed from a reactant in a type of reaction known as oxidation. This is part of a redox (reduction-oxidation) reaction where one species loses electrons (oxidation) and another gains electrons (reduction). In the context of organic reactions, such an event can occur during dehydration synthesis, where the removal of electrons takes place as OH and H are removed to form water, contributing to the formation of a double bond. A common way to manipulate the position of equilibrium in reactions is to remove a product, for example, using a substance that reacts with one of the products or reactants, as mentioned in the given information. Le Chatelier's principle can be employed to shift equilibrium by removing products, thereby favoring the forward reaction that replenishes the removed product.
The statement that 'Electrons are removed from OH and H in dehydration synthesis' pertains to such an oxidation process. The overall redox reaction can be broken down into two half-reactions, which are balanced separately for atoms and charge. In doing so, electrons are added to one side of the half-reaction to balance the charge, ensuring that electrons lost equal electrons gained, thus adhering to the conservation of charge principle.