explain why sour substances are effective in cleaning copper vessels
Cu + HCl = cucl+h2
In copper vessel there is a layer formed due to corrosion which is basic in nature which is dissolved in the lemon or tamarind juice which are acidic in nature. Thus, the vessel get thoroughly cleaned
thnx☺☺
Sour substances contain acids these acids dissolve the coating of copper oxide present on the surface of tarnished copper vessels and make them shining.