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प्रश्न
What is meant by 22 carat gold?
लघु उत्तरीय
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उत्तर
An alloy of gold with copper or silver (Cu and Ag are mixed with gold to make it harder) is called 22 carat gold. The value refers to 22 parts of pure gold alloyed with two parts of either silver or copper. 22 carat gold is used for making jewellery.
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अध्याय 3: Metals and Non-metals - Exercise 3 [पृष्ठ २३२]
