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4. MATERIALS: METALS A gold an. sold and silver while making Small amount of copper is added to jewellery. Why ?

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Q1
Given reasons why :
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Q2

Gold is a very precious metal. Pure gold is very soft it is therefore not suitable for making jewellery. Itis alloyed with either Silver or Copper to make it hard. But sometimes jewellers mix a large quantity ofcopper and Silver in gold to earn more profit.(i). What precautions should you take while purchasing gold jewellery?(ii). Why does Government insist on purchasing Hall Marked jewellery?

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