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Explain why sour substance are effect I in cleaning copper vessel?

Answer» 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 of copper carbonate. The citric acid present in lemon tamarind neutrilises the basis copper carbonate and dissolves the layer. That\'s why sour substance is used for cleaning cooper vessels.
Because it contains acid and acid react with copper and and make the substance poisonous..


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