Question

1. Why do the copper vessels get tarnished? How will
you regain the shine of copper vessels? Name the
types of reactions involved in both the processes.​

Answer 1

Explanation:

Copper reacts with moist carbon dioxide in air to form copper carbonate and as a result, copper vessel loses its shiny brown surface forming a green layer of copper carbonate. Tarnished copper vessels are cleaned with lemon or tamarind juice to give the surface of the copper vessel its charateristic lustre.