Chemistry-10th Metals and Non-metals CBSE Board 2023 Medium
(a) Copper reacts with a moist gas ‘A’ in the air and slowly loses its shiny brown surface. It turns green. I…
- (a)Copper reacts with a moist gas ‘A’ in the air and slowly loses its shiny brown surface. It turns green. Identify ‘A’ and the substance of the green coating formed on the surface of copper.
- (b)How is copper obtained from its sulphide ore ? Write the chemical equations for the reaction involved in its extraction.
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