A metal X left in moist air for a longer time, loses its shiny brown s

1.	A metal X left in moist air for a longer time, loses its shiny brown surface and gains a green coat. Why has this happened? Name and give the chemical formula of this given coloured compound and identify the metal. List two ways to prevent this Process.
Answer» The metal has corroded because of being exposed to moist air. Green compound is basic copper carbonate [CuCO₃. Cu(OH)₂] The metal is copper. Two ways to prevent this process : Painting, Greasing, Oiling, Galvanizing

A metal X left in moist air for a longer time, loses its shiny brown surface and gains a green coat. Why has this happened? Name and give the chemical formula of this given coloured compound and identify the metal. List two ways to prevent this Process.

Answer»

The metal has corroded because of being exposed to moist air. Green compound is basic copper carbonate [CuCO₃. Cu(OH)₂]

The metal is copper.

Two ways to prevent this process :

Painting, Greasing, Oiling, Galvanizing