Question

Container made of cooper metal on exposure to air for long timeturns green. This green layer is due to

Answer 1

Answer:

Hey mate......

Copper -

Copper is a chemical element with the symbol Cu (from Latin: cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color.

Answer 2

Answer:

here's ur answer

May be CO2