Explain why, the surface of some metals acquires a dull appearance when exposed to air for a long time.


The surface of some metal acquires a dull appearance because metals form a thin layer of oxides, carbonates or sulphides on their surface when exposed to air for a long time.

Tutorialspoint
Tutorialspoint

Simply Easy Learning

Updated on: 10-Oct-2022

53 Views

Kickstart Your Career

Get certified by completing the course

Get Started
Advertisements