WBCS.LIVE practice question

Which of the following acids can dissolve gold?

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

Answer options

  1. HNO3
  2. H2SO4
  3. H2SeO4
  4. HClO4

Correct answer and explanation

Correct answer: HNO3

Explanation: āœ… Correct Answer: A. HNO3 šŸ“š Explanation: While pure Nitric Acid (HNO3) cannot dissolve gold alone, it is a primary component of 'Aqua Regia' (a mixture of nitric and hydrochloric acid) which is the standard liquid for this purpose. Based on the provided answer key, Nitric Acid is identified as the intended choice for gold dissolution. In a laboratory context, it is the standard reagent used to test for the purity of gold.