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.
Answers
In tarnished copper vessel which has their layer formed according to the correction which is basic in nature.
It gets dissolved in the part of the lemon and other tamarind juice.
Because both of them are acidic in the nature.
Even the vessel gets thoroughly and well clear to provide better support and solution to the student.
Answer:
BTS
Copper reacts with moist carbon dioxide in air to form copper carbonate and as a result, copper vessel loses its shiny brown surface forming a green layer of copper carbonate. The citric acid present in the lemon or tamarind neutralises the basis copper carbonate and dissolves the layer. That is why, tarnished copper vessels are cleaned with lemon or tamarind juice to give the surface of the copper vessel its characteristic lustre.