Question

silver items turning black when left exposed to air which reaction is this ​

Answer 1

Answer:

Single displacement reaction

Explanation:

A general single displacement reaction can be represented as : Reaction of silver with hydrogen sulphide gives silver sulphide which is black in color and thus leads to corrosion of silver.

Answer 2

Answer:

,(a) Silver article turns black when kept in the air because silver article with sulphur compounds such as hydrogen sulphide

present in air. The phenomenon is called corrosion. For silver particularly, it is called tarnishing of silver. <br> (b) The black substance formed is silver sulphide

. <br>

Explanation:

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