Question

Geeta 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 and name the type of reaction.

Answer 1

1. Copper is more reactive than silver. Hence displacement reaction occurs.
2. When copper coin is dipped in silver nitrate solution forming copper nitrate and silver metal.
3. A shining white deposit of silver metal is formed on copper coin. Hence she saw a silver shine on the copper coin.

Balanced equation:-  

2AgNO_3(aq) + Cu_(s) → Cu(NO₃)_2(aq) + 2Ag_(s)