Question

What is the process of putting a thin layer of superior metal over an inferior metal known as?

Payal is a teenager who does not want to waste too much money on jewelry. what kind of jewelry would you recommend to her?

Answer 1

1. Depositing a thin layer of superior metal over an inferior metal is called electroplating.
2. In this process generally, a thin film of gold, silver, platinum, nickel, or chromium is deposited on another metallic article made up of inferior metals like iron or copper with the help of electricity.

Reasons behind electroplating:

1. Protection from rusting
2. Decoration purposes.

Condition for electroplating:

1. The article to electroplated should always be placed at the cathode.
2. The metal to be plated on should be placed on an anode.
3. A low dc current should be used for a longer period of time.

If Payal does not wants to waste too much of her money on jewelry, she could purchase electroplated jewelry.