Why aluminium andcopper used in urensils?
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This layer forms protective coating onaluminium and prevents the reaction of aluminium with oxygen. Aluminiummetal with this protective layer is usedfor making cooking utensils.Aluminium is a good conductor of heat.Thats why it is extensively usedfor making cooking utensils.
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because alminium and copper have low resitivity therfore,it heated earlier as comapared to others
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