​Which of the following mixtures is used to purify Gold? ​

Correct option is C

The correct answer is (C)Aqua regia.

Explanation:

• Aqua regia is a mixture of hydrochloric acid and nitric acid, used to dissolve gold.

Incorrect Options Explanation:

• Aerosol: A suspension of liquid droplets or solid particles in air
• Nessler's Reagent: A chemical reagent used for detecting ammonia
• Liquor Ammonia: A solution of ammonia in water

Information Booster:

• Aqua regia can dissolve noble metals like gold and platinum.
• Discovered by Johann Rudolph Glauber in the 17th century.