Question

Silver article turns black when kept in the open for a few days due to formation of
(A) H2S
(B) AgS
(C) AgSO4
(D) Ag2S

Answer 1

Answer:

A silver article turns black when kept in the open for a few days due to the formation of (1) H2S (2) AgS (3) AgSO4 (4) Ag2S. The phenomenon is known as corrosion. It is called silver tarnishing, particularly for silver. The black substance obtained is known as silver sulphide.

Answer 2

A silver article turns black when kept in the open for a few days due to the formation of corrosion. (1) H2S (2) AgS (3) AgSO4 (4) Ag2S. The phenomenon is known as It is called silver tarnishing, particularly for silver. The black substance obtained is known as silver sulphide.