Question

Write true or false. Correct the false statement.

Iron has only one valency

• A. True
• B. False

Answer 1

The correct option is B False

• The combining capacity of an element is known as its valency.
• The valency of an element is equal to the number of electrons an element loses, gains, or shares during a chemical bond formation.
• Some elements have a tendency to show different valencies in different compounds. It means that some elements show variable valency.
• For example, Iron has a valency of $+2\mathrm{in}\mathrm{FeO}$ and $+3\mathrm{in}{\mathrm{Fe}}_2{\mathrm{O}}_3$.

Hence, the given statement is false. Iron shows variable valency i.e. $+2$ and $+3$.