Question

Silver articles become black when kept in open for sometime whereas copper vessels lose their shiny brown surface and gain a green coat when kept in open. Name the substance present in Air with which these metals react and write the names of the products formed

Answer 1

Answer:

silver articles become black when kept in open for sometimes whereas copper vessels lost their shiny brown surface and gain a green coat when kept in open because silver articles react with Sulphur compound such as hydrogen sulphur present in the air to form silver sulphide Ag2S whereas copper reacts slowly with CO2 and water present in year to form green coating of mixture of copper compound and copper hydroxide

Explanation:

Answer 2

Explanation:

silver articles become black when kept in open for some time whereas copper base is there any brown surface and gains a green coat when kept in open in the photo