Single Answer MCQ
Q-00019686
Why do silver articles appear black after some time?
1
Formation of silver chloride
2
Formation of silver sulphide
3
Oxidation to silver oxide
4
Scratching of the surface
Answer and Solution
Answer
B. Formation of silver sulphide
Solution:
Silver reacts with sulphur in the air to form silver sulphide, which gives the black appearance. Other options do not accurately identify the cause.
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