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Question
Mention three important uses of nitric acid. Give the property of nitric acid involved in the use.
Solution
- Nitric acid is used in the purification of silver, gold, platinum, etc., because impurities of other metals are dissolved in it.
- 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.
- Nitric acid is used in the preparation of aqua regia because aqua regia dissolves noble metals.
- To etch designs on copper and brassware, because nitric acid acts as a solvent for a large number of metals except noble metals.
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