Purity of gold is expressed in __________.

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Solution

Purity of gold is expressed in carats.
24 carat gold $=$ pure gold.
For making ornaments 22 carat gold is used which contains 22 parts of gold by weight and 2 parts of copper by weight.

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Purity of gold is expressed in __________.

Purity of gold is expressed in carats.24 carat gold = pure gold.For making ornaments 22 carat gold is used which contains 22 parts of gold by weight and 2 parts of copper by weight.

Purity of gold is expressed in carats.
24 carat gold $=$ pure gold.
For making ornaments 22 carat gold is used which contains 22 parts of gold by weight and 2 parts of copper by weight.