Question

On mixing aqueous solution of silver nitrate and sodium chloride, a white precipitate of ______ is formed along with sodium nitrate. This is an example of ________ reaction.

• A. silver chloride
• B. double displacement

Answer 1

• $\underset{\mathrm{Silver}\mathrm{nitrate}}{\mathrm{AgNO}3\left(\mathrm{aq}\right)}+\underset{\mathrm{Sodium}\mathrm{chloride}}{\mathrm{NaCl}\left(\mathrm{aq}\right)}\to \underset{\mathrm{Silver}\mathrm{chloride}\left(\mathrm{white}\right)}{\mathrm{AgCl}(\downarrow )}+\underset{\mathrm{Sodium}\mathrm{nitrate}}{\mathrm{NaNO}3\left(\mathrm{aq}\right)}$
• In the above reaction silver nitrate is reacting with sodium chloride to form sodium nitrate and silver chloride as a white precipitate.
• It is an example of a double displacement reaction.
• Double displacement reaction- A double displacement reaction is a type of displacement reaction in which two constituent reactants interchange positive and negative ions and form two new compounds.

Hence, On mixing an aqueous solution of silver nitrate and sodium chloride, a white precipitate of silver chloride is formed along with sodium nitrate. This is an example of a double displacement reaction.