Question

what is aqua regia .explain it​

Answer 1

Aqua regia is the highly corrosive and fuming liquid. It is freshly prepared mixture of conc. HCL and conc. HNO3 in the ratio of 3: 1 . Most of the substances dissolve in it. Aqua regia is the reagent which dissolve gold and platinum..

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Answer 2

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Aqua Regia is a freshly prepared mixture of 3 parts of concentrated Hydrochloric Acid and 1 part of concentrated Nitric Acid.

It is a highly corrosive agent which can even corrode noble metals like gold, silver and platinum.

The colour of Aqua Regia is yellowish-Orange and it is a fuming liquid.

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When gold or silver is dipped in Aqua Regia, the mixture corrodes the gold and silver metal from the ornament and mixes in itself.

The shining of the ornament comes but the weight greatly reduces.

Gold and other valuable metals are then extracted from the Aqua Regia later on with suitable chemical treatment.

Usually, It is used to cheat people. For the sake of cleaning the ornaments, the thieves dip the ornaments into Aqua Regia which in return brightens the Ornaments but reduces its weight.

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