Question
What is an aqua regia? Which metals can be dissolved in it?
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Answer
- A freshly prepared mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio of $3 : 1$ is called an aqua regia (Latin meaning ‘royal water').
- Aqua regia is a highly corrosive, fuming liquid.
- Many metals along with noble metals like gold and platinum can be dissolved in aqua regia solution,
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