📝 Multiple Choice Question
General-science
The black coating formed on silver jewellery is:
A
AgNO3
B
Ag2CO3
C
AgCl
D
Ag2 S
Explanation
Silver tarnishes over time when it naturally reacts with trace amounts of hydrogen sulfide gas (H2S) present in the ambient air. This historically common chemical reaction slowly forms a thin, protective black layer of silver sulfide (Ag2S) directly on the surface of the jewelry.
Report Issue
Discussion (0 Comments)
Leave a Comment
No comments yet. Be the first to comment!
📌 Related Questions
Which of the following is an example of a 'solid in a liquid' type of ...
Solve →Which chemical is used to preserve biological specimens in laboratorie...
Solve →Which gas is released when you combine vinegar and baking soda in a ba...
Solve →Which of the following statement is correct regarding rate of diffusio...
Solve →Which of the following is the most abundant element in the Earth's cru...
Solve →