A layer of reddish brown precipitate which is formed on the iron knife, when an iron knife is dipped in an aqueous solution of copper sulphate is of which compound or element?

A layer of reddish brown precipitate which is formed on the iron knife, when an iron knife is dipped in an aqueous solution of copper sulphate is of which compound or element? Correct Answer Copper

copper produced in the below reaction will be deposited on iron knife gives reddish brown colour. Fe + CuSO4 –> FeSO4 + Cu (copper)
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