Question

4) Silver articles becomes black on prolonged exposure to air. This is due
to formation of
a) Ag20 b) Ag,S C) AGCN d) Ag20 and Ag2S.
guys please help​

Answer 1

Answer:

Ag2S ,because of it .........may be its help u mate

Answer 2

Option ( b ) AgS ( silver chloride ) is the answer

#BAL

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