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BHU PMT BHU PMT (Mains) Solved Paper-2005

  • question_answer
    Which of the following metal is found in gun metal, monel metal and brass alloy?

    A)  Zn                                         

    B)  Hg

    C)   Fe                                        

    D)  Cu

    Correct Answer: D

    Solution :

                      Gun metal \[(Cu=88%,\text{ }Sn=10%,\text{ }Zn=2%)\] Monel metal\[(Cu=28%,\text{ }Ni=70%,\text{ }Fe=2%)\] Brass\[(Cu=70%,\text{ }Zn=30%)\] Hence, Cu is present in all of three.


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