Question

what is Aqua regia? name two special metals which are insoluble in common reagents but dissolve in Aqua regia

Answer 1

Aqua regua is a acid
The metals which can be dissolved in it are :
1 gold
2 platinum
3 palladium

Answer 2

Aqua Regia (Latin name for 'Royal water') is a freshly prepared mixture of concentrated Hydrochloric acid and concentrated Nitric acid in the ratio of 3:1.

It can dissolve Gold even though neither of these acids do so alone. It is a highly corrosive, fuming liquid. It is one of the few reagents that is available to dissolve gold and platinum.

I THINK IT HELPS U......... :-)