One day Reeta went to a jewellers shop with her mother. Her mother gave an old gold jewellery to a 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?
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7
Answer:because the gold smith use aquaregia to clean it
Explanation:this why the weight of gold is reduced
Aravinthan31:
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2
because Goldsmith may remove the upper dull surface by using chemical(e.x.aqua-regia=> a combination of nitric acid and hcl in 1:3.)
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