Question

Give your observation along with equation:

When copper rod is placed in silver nitrate solution

Answer 1

Displacement reaction:

• It is a chemical reaction in which an element replaces another element in a compound and takes its place.
• $\underset{\mathrm{copper}}{\mathrm{Cu}\left(\mathrm{s}\right)}+\underset{\mathrm{silver}\mathrm{nitrate}}{2{\mathrm{AgNO}}_3\left(\mathrm{aq}\right)}\stackrel{}{\to }\underset{\mathrm{copper}\mathrm{nitrate}}{\mathrm{Cu}{\left({\mathrm{NO}}_3\right)}_2\left(\mathrm{aq}\right)}+\underset{\mathrm{silver}}{2\mathrm{Ag}\left(\mathrm{s}\right)}$
• Copper($\mathrm{Cu}$) is more reactive than silver($\mathrm{Ag}$), hence it displaces silver from compound silver nitrate(${\mathrm{AgNO}}_3$).
• The above reaction is also called a single displacement reaction as only one element displaces another element from its compound.