Question

What is aqua regia ?

Answer 1

it is mixture of nitric and hydrochloric acid....... mainly used to polish the gold

Answer 2

⭕️Aqua regia is a highly-corrosive mixture of acids.

⭕️It is in fuming yellow or red solution.

⭕️The mixture is formed by mixing ""concentrated"" nitric acid [HNO3] and hydrochloric acid [Hcl]

⭕️it's mixed usually in a volume ratio of 1:3

✔️✔️✔️Uses :-

⭕️It is used for dissolving noble metals.
➖eg:- gold

⭕️It is used in laboratories to clean glassware.

⭕️It is used to produce chloroauric acid [HAuCl₄ ] .

⭕️It's an electrolyte used in the Wohlwill process* of refining gold.

⭕️It is used in chemical milling too!!!!!

* Wohlwill process is a chemical procedure used to refine gold to the highest degree of purity.

The process was invented in by Emil Wohlwill and hence named after him!!!!!!!!!

$\huge\bf{\boxed {\red{\mathfrak{thank \: you :)}}}}$