Which of the following is used for dissolution of gold

GC Acids Bases Salts

Which of the following is used for dissolution of gold?

  1. Hydrochloric acid
  2. Sulphuric acid
  3. Nitric acid
  4. Aqua regia

Answer

Aqua-regia is a very strong acid and can be used to dissolve gold. It is a 1:3 mixture of concentrated HNO3 and concentrated HCl.

The correct option is D.