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

  • question_answer   Give the difference between electrolytic reduction and reduction with carbon.

    Answer:

       

    Reduction with carbon Electrolytic Reduction
    1. Carbon is used as a reducing agent 2. Oxides of moderately reactive metals (e.g., Zn, Fe, Cu, Ni) are reduced by carbon. 3. In this process the metal oxide is mixed with carbon (coke) and heated in a furnace.   1. Electrolysis process is used for reduction 2. Oxides (and chlorides) of highly reactive metals (e.g., Al, Na, K, Mg, Ca) are reduced by this process 3. In this process molten metal oxide is electrolyzed in an electrolytic cell here the cathode acts as a powerful reducing agent by supplying electrons to reduce metal ions into metal.
                                                                       


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