Which condition allows for the conduction of electricity in solutions?

The conduction of electricity in solutions requires the movement of charged particles. In a solution, this is typically achieved through the presence of dissolved ionic compounds, which dissociate into their constituent ions. These ions are mobile and can carry a current when a voltage is applied, allowing the solution to conduct electricity effectively.

When ionic compounds dissolve in water, they break apart into individual cations and anions. This dissociation is crucial because it enables the ions to move freely within the solution. In contrast, non-polar molecules do not dissociate into charged particles and do not facilitate electrical conduction. While higher temperatures can increase the conduction of electricity by enhancing the movement of particles, it's not a standalone condition that ensures conduction. Lastly, gases, in general, do not provide charged particles in solution. Therefore, the presence of dissolved ionic compounds is the essential condition for electrical conductivity in solutions.