Uttarakhand PMT Uttarakhand PMT Solved Paper-2008

  • question_answer
    Roasted tin stone ore after washing with water is known as

    A)  block tin       

    B)  white tin

    C)  black tin       

    D)  granulated tin

    Correct Answer: C

    Solution :

     Tin stone\[(Sn{{O}_{2}})\]after roasting and washing is called black tin.


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