Question

One day Reeta went to a jeweller’s shop with her mother. Her mother gave old gold jewellery 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?


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Answer 1

• In the jeweler’s shop, to polish gold jewelry it is dipped in an acid called Aqua Regia.
• Aqua Regia dissolves the outer layer of gold.
• So, the inner shiny layer is visible.
• As there is a loss of the outer layer there is a slight loss in its weight.

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Liza, tu kaunse board mein hai. CBSE??

Answer 2

This is the answer.

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