Question

Sudha dipped a copper coin in a solution of silver nitrate. After some time she saw the silver shine on the coin. Why? Give the balanced chemical equation for the same..

Answer 1

Copper is more reactive than silver because copper is at the top in the metal reactivity series than silver. Hence, displacement reaction occurs and silver is displaced by copper ion.

When copper coin is dipped in silver nitrate solution, copper nitrate and silver metal are formed. A shining white deposit of silver metal is formed on copper coin. Hence, Sudha saw a silver shine on the copper coin.

Balanced equation:

2AgNO₃(ag) + Cu(s) → Cu(NO₃)₂(ag) + 2Ag(s)