What is termed as the point where all reactants have been converted into products?

The correct answer is related to the concept of equilibrium in chemical reactions. Equilibrium refers to a state in a reversible chemical reaction where the rates of the forward and reverse reactions are equal, resulting in no net change in the concentrations of reactants and products over time. While the question asks for the point where all reactants are converted into products, it is important to understand that in practical scenarios, this situation is often approached as a reaction reaches completion.

The term associated with the complete conversion of reactants typically signifies that all the starting materials have been turned into products. However, in real-world applications and particularly in chemical kinetics, reactions can take a long time to achieve maximum yield or could be influenced by reaction conditions, leading to an equilibrium state where the products and reactants are present in specific concentrations.

At the point of equilibrium, the system stabilizes and maintains certain concentrations of reactants and products. This understanding highlights why equilibrium is the more precise term in the context of reversible reactions, where both products and reactants are present but at stable concentrations rather than a complete conversion.