Which of the following metals reacts with moist carbon dioxide in the air, gradually losing its shiny brown surface and developing a green coating?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Copper.
- Copper reacts with the moist carbon dioxide in the air and slowly loses its shiny brown surface and gains a green coat.
- Copper is a chemical element, it is a reddish, extremely ductile metal that is an unusually good conductor of electricity and heat. It is found in the free metallic state in nature.