Question

objects made of silver becomes black with passage of time give reason​

Answer 1

Answer:

react with air and turn black

Answer 2

Explanation:

Object made of silver becomes black with passage of time due to formation of thin silver sulphide layer on surface by the action of hydrogen sulphide present in air. This is because object made from silver reacts with sulphur present in the atmosphere and forms silver sulphide. ... So, silver becomes black in colour