Question

explain Aqua Regia-Royal water?????

Answer 1

Aqua Regia is mixture of HNO3 and HCl. It contains one molecule of HNO3 and three molecules of HCl...

Answer 2

ko...aur khuch bta skte ho

Answer 3

It is used by frauds to dissolve gold in it and cheat the innocent costumers..

Answer 4

When gold dissolves in it, it forms AuCl(gold chloride)... That's all I had read about it in 10th. After 10th I've not opened Chemistry book.

Answer 5

Give me a medal.

Answer 6

Aqua regia "royal water" aqua regis or nitro-hydrochloric acid is a highly-corrosive mixture of acids, a fuming yellow or red solution. The mixture is formed by freshly mixing concentrated nitric acid and hydrochloric acid, usually in a volume ratio of 1:3. It was named so because it can dissolve the so-called royal or noble metals, gold and platinum. However, titanium, iridium, ruthenium, tantalum, osmium, rhodium and a few other metals are capable of withstanding its corrosive properties.Aqua regia is primarily used to produce chloroauric acid, the electrolyte in the Wohlwill process. This process is used for refining highest quality (99.999%) gold.
Upon mixing of concentrated hydrochloric acid and concentrated nitric acid, chemical reactions occur. These reactions result in the volatile products nitrosyl chloride and chlorine as evidenced by the fuming nature and characteristic yellow color of aqua regia. As the volatile products escape from solution, the aqua regia loses its potency.

HNO3 (aq) + 3 HCl (aq) → NOCl (g) + Cl2 (g) + 2 H2O (l)

Nitrosyl chloride can further decompose into nitric oxide and chlorine. This dissociation is equilibrium-limited. Therefore, in addition to nitrosyl chloride and chlorine, the fumes over aqua regia contain nitric oxide.
2 NOCl (g) → 2 NO (g) + Cl2 (g),
this much i know ...(did a bit of digging!!!)

Answer 7

@payalvsangle didi, yeh hai aapka answer.
http://en.wikipedia.org/wiki/Aqua_regia