Why aqua regia is called "royal water".
Aqua regia (mixture of HNO3 and HCl) is the latin name of royal water.It is called so because it can disosolve the royal metals gold and platinum.
Aqua Regia or Royal liquid is a mixture of
Gold does not react easily with acid but it reacts with aqua regia. What is aqua regia ? Why does it react with gold?
(i) What is aqua-regia? (ii) State the use of aqua-regia. (iii) What is the function of HCl in preparation of aqua-regia?