Question

define the the simplest iron,compound ion​

Answer 1

Answer:

ion : it is an electrically charged atom or molecule formed by loss or gain of electrons.

Ion formed by loss of electron is called cation. Example:- Magnesium ion

Ion formed by gain of electron is called anion. Example:- Cyanide ion

Common ion: effect is a phenomenon in which degree of dissociation of any weak electrolyte is supressed by addition of small amount of strong electrolyte containing a common ion.