The types of chemical reactions called oxidation  and reduction lie at the heart of respiration. They always occur together - one substance is oxidised as another is reduced. ... oxidation  is the removal of electrons, e.g. Fe2+ Fe3+ + e.

Oxidation as a Controlled Reaction

Oxidation is a chemical process that involves the loss of electrons by a substance, resulting in an increase in its oxidation state. It is often referred to as a controlled reaction due to several reasons. Let's delve into the details to understand why oxidation is considered a controlled reaction.

Control over Reaction Rate

One of the primary reasons oxidation is known as a controlled reaction is the ability to regulate its rate. The rate of oxidation can be controlled by manipulating various factors, such as temperature, concentration of reactants, and the presence of catalysts. These factors can be adjusted to either accelerate or decelerate the oxidation process, allowing for precise control over the reaction rate.

Prevention of Uncontrolled Reactions

Oxidation reactions are known to be highly exothermic, meaning they release a significant amount of heat. If left uncontrolled, this heat can lead to a rapid increase in temperature, potentially causing an uncontrolled or runaway reaction. However, by carefully managing the reaction conditions, such as maintaining appropriate temperature and using suitable reaction vessels, the risk of uncontrolled reactions can be minimized or eliminated.

Achievement of Desired Products

In many industrial processes, oxidation is employed to obtain specific products with desired properties. By controlling the oxidation conditions, chemists and engineers can optimize the reaction to favor the formation of the desired products while minimizing the formation of unwanted byproducts. This allows for efficient and selective synthesis, ensuring the desired outcome of the oxidation process.

Enhanced Safety

Controlled oxidation reactions contribute to enhanced safety in various chemical processes. By carefully regulating the reaction conditions, the risk of accidents or hazardous situations can be mitigated. This includes preventing the formation of explosive mixtures, managing the release of toxic gases, and minimizing the potential for fire or other safety hazards. Proper control over the oxidation process helps maintain a safe working environment.

Preservation of Reactants

In some cases, oxidation reactions involve valuable or limited reactants. By controlling the reaction conditions, it is possible to minimize the consumption of these reactants, leading to better resource utilization and cost-effectiveness. Additionally, controlling the reaction ensures that reactants are not wasted or converted into undesired products, maximizing the efficiency of the oxidation process.

In conclusion, oxidation is referred to as a controlled reaction due to the ability to regulate the reaction rate, prevent uncontrolled reactions, achieve desired products, enhance safety, and preserve reactants. This control over the oxidation process allows for efficient and controlled synthesis, making it an essential aspect of various chemical and industrial processes.