Question

A utensil made of brass was kept in a kitchen. After some days, the utensils lost its lustre due to the formation of a greenish layer on it. What could be the cause for this?

Answer 1

• When metals get exposed to the environment, the metal loses their shine or strength or is covered with a coloured layer.
• This occurs due to the chemical reaction between metals and the environment and the process is known as corrosion.
• When Copper or brass is exposed to the environment, a green-coloured layer is deposited on its surface.
• Therefore, due to corrosion the utensils lost their lustre and forms a green-coloured layer on them.