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Question

The tarnishing of silver ornaments in the atmosphere is due to the formation of:

A
Ag2O,Ag2S
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B
AgNO3,Ag2S
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C
AgOH,Ag2CO3
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D
Ag
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Solution

The correct option is A Ag2O,Ag2S
In the air, a silver object tarnishes owing to the reaction of silver with hydrogen sulfide and oxygen.
Reaction:
Ag+air(O2+H2S)Ag2O+Ag2S

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