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A goldsmith claims that gold ornaments made by him are of relative density 19.3.  He sells a gold article to a customer which weighs 37.875 g in air.  The customer weighs the article by completely immersing under water and finds that it weighs 34.613 g.  By doing suitable calculations, find out whether the article sold by goldsmith is pure or not.

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert

Weight of gold article in air  = 37.875 g

Weight of gold article in water  = 34.613 g

Therefore, Relative density of gold =  =

The gold article is not pure, because its relative density (11.61) is far less than the relative density of pure gold (19.3).

Answered by Expert 4th June 2014, 3:23 PM
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