Question

42. What Happens to silver objects when it is exposed to air for long time?

Answer 1

Answer:

The silver article becomes black after sometimes when exposed to air because silver reacts with sulphur which is present in the atmosphere and then forms silver sulphide. Thus the layer of this silver sulphide is formed on the surface of the silver article so they appear as dull or black.

Answer 2

Explanation:

If silver is exposed to air for a long time . it reacts with the sulphur to form black cotting on it