The tarnishing of silver ornaments in atmosphere is due to:

A g_{2} O

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A g_{2} S

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A g_{2} C O_{3}

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A g_{2} S O_{4}

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Solution

The correct options are
A $A g_{2} O$
B $A g_{2} S$
The tarnishing of silver ornaments in atmosphere is due to formation of silver oxide $A g_{2} O$ and silver sulphide $A g_{2} S$ .
$2 A g + \frac{1}{2} O_{2} \to A g_{2} O$
$2 A g + H_{2} S \to A g_{2} S + H_{2}$
Hence, option A and B are correct.

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