what is n factor
The n-factor of a substance in a chemical reaction represents the number of electrons that are exchanged or ions released.
In the case of acids, it's the number of H? ions that can be replaced; for bases, the number of OH? ions released.
In redox reactions, it is equal to the number of electrons gained or lost per molecule or ion.
The n-factor is important in stoichiometry to calculate equivalents.