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The composition of aqua-regia is
(a) Dil. HCl : Conc. HNO3 3 : 1
(b) Conc. HCl : Dil. HNO3 3 : 1
(c) Conc. HCl : Conc.HNO3 3 : 1
(d) Dil.HCl : Dil.HNO3 3 : 1
Answers (1)
Ans. (c)
Aqua regia is a mixture of nitric acid and hydrochloric acid, in a molar ratio of 1:3.
So, Conc. HCI and conc. HNO3 in ratio 3 : 1 forms aqua-regia.
Aqua-regia is a highly corrosive, yellow-orange fuming liquid. It can dissolve all metals (even gold and platinum).
View full answer
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