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In the making of jewels, gold is usually mixed with

  • A.Zinc
  • B.Tin
  • C.Copper
  • D.Aluminium

Answer: C

Gold is alloyed with copper for jewellery.

Pure 24-carat gold is too soft to hold a setting, so copper - often with a little silver - is added for hardness. 22-carat gold is 22 parts gold in 24, about 91.7 per cent; a higher proportion of copper gives rose gold.

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