Why do silver articles turn black when kept on open?
Name the black substance formed and give its chemical formula?
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1
they react with sulphur present in air to form silver sulphate which is black in color
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As the silver articles react slowly with the hydrogen sulphide to form silver sulphide that is the black coloured compound.
AgS is the black coloured silver sulphide.
Ag + H2S ----> AgS + H2.
AgS is the black coloured silver sulphide.
Ag + H2S ----> AgS + H2.
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