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  1. In surgery, metal pins are used for joining together broken bones. These metal pins remain uncorroded in the body. What is the material of these pins?

    2. A.

     Copper
    B.

     Iron
    C.

     Aluminium
    D.

     Titanium

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    Answer : Option D

    Explanation :

    Titanium metal is important for its strength, low density and corrosion resistance. It has bitter corrosion resistance and less reactivity than aluminium. Hence, Titanium pins remains uncorroded in the body.

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