Tarnished copper utensils are cleaned with lime juice or tamarind.


Ans.
i.      When copper utensils are exposed to moist air, they get tarnished or corroded due to the formation of green copper carbonate.
ii. When these tarnished vessels are rubbed with lime juice or tamarind the weak acids present in them dissolve the green copper carbonate and original shine returns.

No comments:

Post a Comment