10th Class Science Metals and Non-metals Question Bank 10th CBSE Science Metals and Non-metals

  • question_answer
      Given below are the steps for extraction of copper from its ore. Write the reaction involved. (i) Roasting of copper     (I) sulphide. (ii) Reduction of copper                (I) oxide with copper (I) sulphide.                            (iii) Electrolytic refining. (b) Draw a neat and well labelled diagram for electrolytic refining of copper.


        Sol.         (a) (i) (1) (ii) (1) (iii) At cathode(1/2) At anode       (1/2) (b) The diagram showing is electrolytic refining of copper given below

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