Question

In a chemical laboratory, the teacher takes aqueous solution of silver nitrate $\left(AgN{O}_3\right)$ and adds it to a solution of potassium chloride $\left(KCl\right)$. Formation of silver chloride$\left(AgCl\right)$, a white solid is observed:
The reaction is an example of a _________.

• A. single displacement
• B. combination
• C. decomposition
• D. double diplacement

Answer 1

The correct option is D double diplacement

When an aqueous silver nitrate $\left(AgN{O}_3\right)$ is added to a solution containing potassium chloride (KCl), and the precipitation of a white solid, silver chloride (AgCl), is observed along with the formation of poassium nitrate solution$\left(KN{O}_3\right)$.

This reaction is an example of double displacement as exchange of ions of silver and potassium takes place.

AgNO₃ (aq) + KCl(aq) → AgCl (s) + KNO₃(aq)