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10th Class Science Metals and Non-metals / धातु और अधातु

  • question_answer 46)
      Stainless steel is very useful material for our life. In stainless steel, iron is mixed with (a) Ni and Cr                       (b) Cu and Cr                      (c) Ni and Cu                      (d) Cu and Au

    Answer:

                      (a) In stainless steel iron is mixed with nickel (Ni), chromium (Cr) and carbon (C). Stainless steel contains iron (=74%), chromium (= 18%) and nickel (= 8%).


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