WBCS.LIVE practice question

'Aqua Regia' is a highly corrosive mixture prepared by mixing concentrated Hydrochloric acid and concentrated Nitric acid in what ratio?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 1:3
  2. 3:1
  3. 2:1
  4. 1:1

Correct answer and explanation

Correct answer: 3:1

Explanation: āœ… Correct Answer: B) 3:1 šŸ“š Explanation: Aqua Regia, Latin for "Royal Water," is a mixture of concentrated $HCl$ and concentrated $HNO_3$ in a 3:1 volume ratio. It is one of the few reagents capable of dissolving noble metals like gold and platinum. The mixture must be prepared fresh as it decomposes quickly, releasing volatile components like nitrosyl chloride.