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Railways General Science & Technology Metals and Non-metals / धातु और अधातु Sample Paper Properties and Uses of Metals and Non-Metals Sample Test Paper-19

  • question_answer
    Which reducing agent is used in chemical reduction:

    A)  C                    

    B)  CO

    C)  Al                   

    D)  All of these

    Correct Answer: D

    Solution :

    [d] Smelting involves the reduction of the ore to the molten metal at a high temperature. For the extraction of less electropositive metal powerful reducing agents such as C, \[{{H}_{2}},\]CO water gas, Na, K, Mg, Al may be used.


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