Question

Uses of electroplating

Answer 1

Answer:

Electroplating is primarily used to change the surface properties of an object (such as abrasion and wear resistance, corrosion protection, lubricity, aesthetic qualities), but may also be used to build up thickness on undersized parts or to form objects by electroforming.

Explanation:

Electroplating is used to coat a surface with a thin layer of metal through electrochemical processes. As students, we may remember such demonstrations from science class, in which electroplating was used to illustrate the chemical principles underlying the process, but the technique has many practical applications.

The object to be plated is placed in a solution containing ions of the metal with which it is to be plated. When a negative charge is applied to the object, the positively charged metal ions are attracted to it. When these ions touch the negatively charged object, the ions are chemically reduced, meaning they become neutral. No longer charged, they become insoluble, precipitating as solid metal, in a very thin coat on the object that is being plated.

Aesthetics

Answer 2

1.to improve their appearance

2.to provide protective coating

3.to minimise the cost