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Question 13 Silver articles become black on prolonged exposure to air. This is due to the formation of: (a) Ag3N (b) Ag2O (c) Ag2S (d) Ag2S and Ag3N

Answer» Question 13
Silver articles become black on prolonged exposure to air. This is due to the formation of:
(a) Ag3N
(b) Ag2O
(c) Ag2S
(d) Ag2S and Ag3N


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