Question

an athlete won a bronze medal in arace competition .after some days ,he found that the medal has lost its luster due to the formation of greenish layer on it.1 name the metal X present in the medal.what is the reason for the appearance of greenish layer?2.name and define the process due to which the medal acquires a green coating? 3.name an ore of X mention the steps involved in extracting the metal from its ore

Answer 1

Answer:

The bronze medal is made of Copper which takes chlorine from the atmosphere to form copper chloride which is the green lining on the medal

1) copper

2) corrosion. Corrosion is a natural process that converts a refined metal into a more chemically-stable form such as oxide, hydroxide, or sulfide. It is the gradual destruction of materials (usually metals) by chemical and/or electrochemical reaction with their environment.

3)Copper pirites

steps are

- cleaning of the ore

- concentration

- electrolysis

hope it helps