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Question
Mention three important uses of nitric acid. Give the properties of the nitric acid involved in its use.
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Solution
- Silver, gold, platinum, and other metals undergo purification through the dissolution of impurities in nitric acid.
- Nitric acid is used as an oxidiser in rocket fuel because it can supply large amounts of oxygen.
- Nitric acid is used in the manufacture of dyes, perfumes, drugs, etc., from coal tar products since nitrobenzene is one of the raw materials of it, which is manufactured from nitric acid.
- The preparation of aqua regia uses nitric acid because it dissolves noble metals.
- Nitric acid acts as a solvent for a large number of metals, except noble metals, making it ideal for etching designs on copper and brassware.
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