Question

why does a silver turns black when left in open​

Answer 1

✔ Answer: Silver article turns black when kept in the air becausesilver article reacts with sulphur compounds such as hydrogen sulphide (H2S) present in air. The phenomenon is called corrosion. For silver particularly, it is called tarnishing of silver.

Answer 2

Explanation:

when left in open silverchloride reacts with sunlight forming silver and chloride separately.. making color of silver black..

2AgCl → Ag + Cl2