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Polishing gold jewellery removes dirt, oils, and other contaminants from its surface, making it appear brighter and more lustrous. However, this process also removes a small layer of gold from the jewelry, which results in a slight decrease in weight.

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Q: Why polishing of gold jewellery decreases its weight?
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Why do the weight of gold reduces after polishing?

The weight of gold reduces after polishing due to the removal of surface impurities and imperfections during the polishing process. As these imperfections are removed, tiny amounts of gold are also lost, leading to a slight reduction in weight.


Why do gold ornament lose weight after polishing?

Gold ornaments lose weight after polishing because the polishing process removes any dirt, oils, or other impurities that are on the surface of the gold. These impurities contribute to the overall weight of the ornament, so once they are removed through polishing, the ornament appears to weigh less.


When polish the gold why the weight is decreased?

When polishing gold, a small amount of the metal is actually removed in the form of dust and residue. This loss of material contributes to the decrease in weight of the gold object being polished. Additionally, any dirt or impurities on the surface of the gold may also be removed during the polishing process, further reducing its weight.


Why does gold loses its weight after polishing?

Gold does not actually lose weight when polished. The appearance of weight loss is due to the removal of contaminants and surface imperfections during polishing, making the gold appear brighter and more reflective. The actual mass of the gold remains the same.


What is the difference between jewellery that is 24 carat and jewellery that is 9 carat?

The main difference is the purity of the metal. 24 carat gold is 99.9% pure gold, whereas 9 carat gold contains 37.5% gold mixed with other metals. 24 carat gold is softer and more prone to damage compared to 9 carat gold, which is more durable.