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Railways General Science & Technology Occurence and Extraction of Metals Sample Paper Occurence and Extraction of Metals Sample Test Paper-18

  • question_answer
    Which of the following oxides, on reduction with carbon gives metal?

    A)  \[C{{r}_{2}}{{O}_{3}}\]        

    B) \[ZnO\]

    C)  \[Mn{{O}_{2}}\]         

    D)  All of these

    Correct Answer: B

    Solution :

    [b] \[ZnO+C\xrightarrow{{}}Zn+CO\]


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