the copper vessel used in homes are found to be coated with green colour. answer the following questions. 1)what is the chemical composition of the green coating? 2) why do copper vessel from such a green coating? 3) what is the name of the phenomenon responsible for the green coating? 4) copper vessel are the best cleaned with tamarind or lemon juice, but not with soap. why?
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when copper is exposed to air, it reacts with moisture ( h2o).
copper vessel form such a green coating because of corrosion. ( includes above statement also)
the green thing which is on the copper is basic in nature. since lemon contains citric acid, both acid and base react and there occurs neutralization reaction. so simply, the salt and water can be cleaned away whereas soap is basic in nature. there will be no use when a base and base react.
copper vessel form such a green coating because of corrosion. ( includes above statement also)
the green thing which is on the copper is basic in nature. since lemon contains citric acid, both acid and base react and there occurs neutralization reaction. so simply, the salt and water can be cleaned away whereas soap is basic in nature. there will be no use when a base and base react.
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1. exposed to atmosphere this reacts with oxygen
2. due to corrosion
3. soap is basic, lemon and tamarind are acids and they clean copper. lemon - citric acid, tamarind - Tartaric acid.
☺hope this helps. thank you❤
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