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Q.

Which of the following is the most ductile metal?

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a

Gold

b

Aluminium

c

Copper

d

Iron

answer is D.

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Detailed Solution

  • The property of metal by which it can be drawn into wires is called ductility.
  • Aluminium, copper, iron, and gold are all ductile metals but their ductility is different.
  • Ductility may be expressed as percent elongation or percent area reduction from a tensile test.
  •  A wire of about 2 km in length can be drawn from one gram of gold and so gold is the most ductile metal.
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Which of the following is the most ductile metal?