Question

Ankur goes to a jewellery shop and buys a gold locket when he comes back home he looks up the density of gold which we find to be 19.3 g/cm3 how can we determine if the locket he has got is of pure gold

Answer 1

Explanation:

We can determine a pure gold ornaments by rubbing it on a hard surface.if the outer layer is removed and changes in colour takes place we can confirm it as a duplicate one.

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