Question

Give an example of an element or substance that does not corrode.

Answer 1

Corrosion:-

• Corrosion is rusting or decaying of material due to chemical reactions that occur between the surface of materials and the atmosphere.
• It is also oxidative -degradation of materials like Iron.
• To prevent corrosion methods like alloy formation, and galvanization is used.

Example of element or substance that does not corrode:

• Platinum and Gold do not corrode easily.
• Platinum and Gold do not react with moisture or water even at high temperatures also and their oxides are highly unstable hence, they do not corrode.
• So, they are used in ornaments.