question_answer

Which two acids combine to form aqua regia and in what ratio?

A) 3 parts of sulphuric acid and 1 part of Nitric acid.

B) 2 parts of Nitric acid and 2 parts of hydrochloric acid.

C) 4 parts of Nitric and 2 parts of Hydrochloric acid.

D) 3 parts of hydrochloric acid and 1 part of nitric acid.

E) None of these