What role do electrolytes play in solutions?

Electrolytes play a crucial role in solutions by dissociating into ions when dissolved in a solvent, typically water. This process results in the formation of charged particles, which are essential for conducting electricity in the solution. When an electrolyte is added to water, it breaks apart into positive and negative ions. These ions are free to move throughout the liquid, enabling the flow of electrical current. This property is fundamental in various applications, such as in physiological processes where nerve impulses depend on the movement of ions.

The other choices offered do have some relevance in chemistry but do not accurately describe the primary role of electrolytes in solutions. While some substances might affect viscosity, neutralization of acids and bases, or pH stabilization, these are not specific functions attributed to electrolytes. The key function that sets electrolytes apart is their ability to dissociate into ions and thus facilitate electrical conductivity, which is essential in many chemical and biological processes.