Question

What happens when silver article is kept in open for a few days?

Answer 1

a silver article generally turns black when it is open for a few days.The article when rubbed with toothpaste again starts shining.

Answer 2

When silver article is kept in open for a few days, it gets Black and dull.

Explanation:  

• When silver article is kept in open for a few hours it gets converted into a black form. This is due to the formation of silver oxide on reaction with the ‘oxygen’ present in the air.  

• This ‘silver oxide’ is black in colour. Hence the outer layer of silver becomes black.

• This process makes the silver lose its visual appeal. Also silver loses its characteristic lustre.  

• The silver oxide remains on the surface of silver. This process is known as the rusting or tarnishing of silver.

Learn more about silver article

A silver article turns black when kept in the open for few days the article when rubbed with toothpaste it regards it's shine

a) why it again starts shining by rubbing with toothpaste ?

https://brainly.in/question/8731523

A silver article generally turns black when kept in open for a few days. The article when rubbed with toothpaste again starts shinning

https://brainly.in/question/7841060