Question

one day Rita went to a Jewellers shop with her mother her mother gave an old gold jewelry to the goldsmith to polish next day when they brought the jewellery back they found that there was a slight loss in its weight. can you suggest a reason for the loss in weight

Answer 1

To polish a gold jwellery it is dipped in a liquid called aquea regia. After dipping in it the outer layer of gold dissolved and inner shinny layer appears. The dissolving of jwellery in a liquid cause reduction of it's weight.

Answer 2

Answer:

Goldsmith washed the jewellery with acidic solution such as aqua reiga. This aqua reiga solution dissovled metal in it. hence there was a slight loss in its weight.

Explanation:

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