Question

Distinguish between strong electrolyte and weak electrolyte.

How will you distinguish a strong electrolyte from a weak electrolyte?

Answer 1

	Strong electrolyte	Weak electrolyte
1.	The electrolytes ionising completely or almost completely are strong electrolytes.	The electrolytes which dissociate to a smaller extent in aqueous solution are weak electrolytes
2.	In strong electrolytes, there is no equilibrium between the ions and the nonionised molecules.	In weak electrolytes, an equilibrium exists between the ions and the nonionised molecules.
3.	A reaction arrow (→) between the ions and nonionized molecules of the strong electrolyte is used to represent the ionization reaction.	A double arrow (⇌) between the ions and nonionised molecules of the weak electrolyte is used to represent the ionisation reaction.
4.	E.g., strong acids, strong bases and salts.	E.g., weak acids and weak bases.