Question

which is the metal which becomes black after certain time?

plzz ans fast​

Answer 1

Answer:

Silver articles become black on exposure to air for sometime. When silver articles exposed to air silver reacts with sulphur present in the atmosphere and form a black layer of silver sulphide on the surface.

Answer 2

Explanation:

silver articles become black because silver articles exposed to air silver reacts with sulfur because sulfer gas prent in atmosphere so this form a black layer of silver sulphite on the surface.