Ionic compounds are good conductors of electricity under specific conditions. Write the two conditions and give reason.

Ionic compounds are good conductors of electricity under the following specific conditions:

  1. When Dissolved in Water (Aqueous Solution):
    • Reason: Ionic compounds dissociate into free ions when dissolved in water. These free-moving ions can carry electrical current through the solution.
    • Example: Sodium chloride (NaCl) dissolves in water to form Na⁺ and Cl⁻ ions, which can conduct electricity.
  2. When Melted (Molten State):
    • Reason: In the molten state, ionic compounds break down into free-moving ions. These ions can move freely and conduct electricity.
    • Example: Sodium chloride (NaCl) melts to form Na⁺ and Cl⁻ ions, which can conduct electricity.

Difference Between Good Conductors and Bad Conductors of electricity

PropertyGood ConductorsBad Conductors (Insulators)
DefinitionMaterials that allow electricity to flow through them easily.Materials that do not allow electricity to flow through them easily.
Electrical ConductivityHigh electrical conductivity.Low electrical conductivity.
ExamplesMetals such as copper, aluminum, and silver.Non-metals like rubber, glass, and plastic.
Free Charge CarriersHave free electrons or ions that move easily.Few or no free electrons or ions available to move.
Heat ConductivityAlso good conductors of heat.Poor conductors of heat.
Use in WiringCommonly used in electrical wiring and components due to their efficiency.Used as insulators to prevent unwanted flow of electricity and to protect users.
Physical PropertiesUsually shiny and metallic.Typically non-metallic and can be dull or transparent.
Example ReactionsCopper: Cu→Cu2++2eāˆ’ (in electrolysis)Rubber: Does not participate in electron transfer.