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Class 8
Chapter 4 Class 8 - Materials : Metals And Non-Metals

When Copper is exposed to moist air for a long time, it forms a dull green coating. This is rusting of copper.

 

The chemical reaction involved is

reaction-of-cooper-with-moist-air.jpg

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CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Accounts and English at Teachoo