question_answer

Aqua regia, literally 'king's water', is a yellow-orange fuming liquid. It was so named by alchemists because it could dissolve the noble metals, gold and platinum. What does it consist of?

A)  Hydrochloric acid and nitric acid

B)  Hydrofluoric acid and hydrochloric acid

C)  Hydrochloric acid and sulphuric acid

D)  Nitric acid and sulphuric acid