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प्रश्न
The composition of aqua-regia is
विकल्प
Dil. HCl : Conc. HNO3 3 : 1 Conc. HCl : Dil. HNO3 3 : 1 Conc. HCl : Conc. HNO3 3 : 1 Dil. HCl : Dil. HNO3 3 : 1
उत्तर
| Conc. HCl | : | Conc. HNO3 |
| 3 | : | 1 |
Explanation -
Aqua-regia is a mixture of concentrated hydrochloric acid and nitric acid in a molar ratio of 3 : 1.
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