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yuu SUL Wlo lusu Oller du
1) Why does the anklet turn black after sometime?
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Answer:
Anklets turned black due to the reaction of silver with atmospheric H2S, which, results in the formation of black coloured silver sulphide (Ag2S). (ii) Ag2S dissolves in acids present in tamarind or lemon juice, so the anklets got their lustre ba
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