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A man went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of

gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was upset but after a futile argument the man beat a hasty retreat. Can you play the detective to find out the nature of the solution he had used?

Science - Science

Chapter_Metals and Non Metals


The name of the solution is Aquarasia. It is made up of 1 part of conc.  HNO_{3} and 3 parts of conc. HCl. It is highly powerful and is also used to melt gold.
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