Question

Answer the following in brief.
1. Why do copper plate becomes dull green after a couple of months?​

Answer 1

Answer:

Corrosion

Explanation:

Due to corrosion the copper plate becomes dull green after a couple of months. Because when copper comes in contact with moisture or water and CO2 its reacts with it to form a green mixture that is copper hydroxide and copper carbonate.

Answer 2

Answer:

Please see the attachment.....