12th Class Chemistry Metallurgy / धातुकर्म Question Bank 12th CBSE Chemistry Metallurgy

  • question_answer
      How is wrought iron prepared?

    Answer:

      (i) Zinc blende is broken into chips and powdered. (ii) Powdered ore is concentrated by froth floatation method. (iii) Concentrated ore is roasted to give ZnO. (iv) Oxide is made into bricketts and heated with coke clay.


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