Question

A student notices that her silver jewellery turned dull and had a gray-black film over it after wearing for a few months. What results in the change in colour of the silver metal? *

(a) dust deposits over the jewellery which changes its colour

(b) the jewellery comes in contact with air, moisture, and acids and corrodes

(c) the polish over the jewellery was removed after wearing for a few months

(d) silver breaks due to wear and tear and turns its colour changes due to rusting​

Answer 1

Answer:

b) The jewellery comes in contact with air, moisture, and acids and corrodes.

Explanation:

Hopefully this will help you!!!!

Answer 2

Answer:

The correct answer is (b) The jewelry comes in contact with air, moisture, and acids and corrodes.

Explanation:

The silver jewelry when kept in contact with air, oxidizes. Silver reacts with oxygen in the air to form a silver oxide. This compound is black. Silver may also react with hydrogen sulfide (also present in the air) to make silver sulfide which is also black in color. This phenomenon is corrosion and can be called silver tarnishing.

Silver may also come in contact with other substances like acids and react.

Conclusion:

The silver jewelry comes in contact with air, moisture a d acids, and corrodes.