47. 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? A.Copper B.Iron C.Aluminium D.Titanium
Answer: Option D Solution: 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.
