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

  • question_answer    (i) A metal M is found in nature as MC03. It is used in galvanizing iron articles. Name the metal. (ii) How can the metal be obtained from its carbonate ore?


                      (i) The metal is zinc (Zn). (ii) The carbonate ore is first heated strongly in limited supply of oxygen and changed into its oxide. This process is called calcination. ZnCO3(s)     ZnO(s) + CO2(g) Zinc oxide is then reduced to zinc metal by heating it with carbon. This process is called reduction. ZnO(s) + C(s)   Zn(s) + CO(g)

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