Question

What is the chemical formula of ammonium chloride?

• A. ${\text{NH}}_3\text{Cl}$
• B. ${\text{NH}}_4\text{Cl}$
• C. $\text{NH}\text{Cl}$
• D. ${\text{NHCl}}_4$

Answer 1

The correct option is B ${\text{NH}}_4\text{Cl}$

Ammonium chloride is made by the combination of ammonium ion (${\text{NH}}_4^{+}$), which is a polyatomic ion having one unit positive charge and a chloride ion (${\text{Cl}}^{-}$), which is a monoatomic ion having unit negative charge.

By criss-crossing the charges of ammonium and chloride ions, the chemical formula of ammonium chloride $\left({\text{NH}}_4\text{Cl}\right)$ is obtained.