VMMC VMMC Medical Solved Paper-2011

  • question_answer
    Which of the following is philosophers wool?

    A) \[ZnO\]               

    B) \[HgO\]               

    C)         \[A{{g}_{2}}O\]           

    D)         \[CuO\]

    Correct Answer: A

    Solution :

    \[ZnO\] is known as philosophers wool because it is very light, white, soft wooly powder.


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