Percentage of Cu in rolled gold is ___

  • 50%
  • 75%
  • 90%
  • 10%
Monis Rasool Professor Asked on 6th May 2015 in Chemistry.
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1 Answer(s)

Percentage of Cu in rolled gold is 90%.

Rolled gold is a hybrid material, consisting of a thin layer of gold that’s mechanically bonded to one or both sides of a base metal. It is an alloy of copper and zinc used to imitate gold. It is used in expensive jewellery.

Anurag Mishra Professor Answered on 10th May 2015.
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