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You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels.

You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels.

Grade:12th pass

2 Answers

Pawan Prajapati
askIITians Faculty 60796 Points
5 months ago
Our expert is working on this class X maths answer. We will update the answer very soon.
Jayesh Vashishtha
askIITians Faculty 1449 Points
5 months 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

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