It is said that if your silver jewellery or cutlery tarnishes with time, you can be sure that you have pure silver with you. What causes the tarnishing of silver? Give the chemical name and formula of the compound formed by tarnishing of silver.
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Silver jewellery and silver cutlery tend to lose their shine over time and even to get black. This is tarnish – a result of chemical reaction between silver and sulphur in the air. It is only a layer or coating so the silver inside it is preserved.
Chemical Name:- Silver sulfide
Chemical Formula:- Ag2S
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