Jayesh Vashishtha
Last Activity: 3 Years ago
Dear Student,
Copper reacts with moist carbon dioxide in the air to form copper carbonate, and the shiny brown surface of the copper vessel is covered by a green layer of copper carbonate.The citric acid in lemons or tamarind dissolves the coating by neutralising the base copper carbonate.As a result, tarnished copper vessels are washed with lemon or tamarind juice to restore their lustre.
regards,
Team Askiitians