Found inside – Page 23Aqua regia is the strongest mixture of acids.It is a molar mixture HNO3 and H2SO4 in the ratio of 1:3. This mixture could dissolve Au. 8) (a). 9) (c). Found inside – Page 31(a) Aqua-regia is a mixture of concentrated nitric acid and concentrated hydrochloric acid in the ratio 1 : 3 respectively. It is a very powerful oxidising ... Found inside – Page 27Aqua-regia is a mixture of concentrated nitric acid and concentrated hydrochloric acid in the ratio 1 : 3 respectively. It is a very powerful oxidising ... Found inside – Page 106Aqua - regia : Mixture of nitric acid and hydrochloric acid in ratio of 1 : 3 . Short Answer Type Questions- - 1 ( 2 marks each ) Q. 1. Found inside – Page 106Aqua - regia : Mixture of nitric acid and hydrochloric acid in ratio of 1 : 3 . Short Answer Type Questions- - 1 ( 2 marks each ) Q. 1. Found inside – Page 129Aqua regia consists of a mixture of hydrochloric and nitric acids . The mixture is effective in dissolving nearly all metals , regardless of the precise ratio of the two acids . Most commonly , however , a ratio of 2 or 3 volumes of hydrochloric acid to ... Found inside – Page 193Beakers and stir bar were washed thoroughly in aqua regia (mixture of HCl and HNO; with the ratio of 3:1) and rinsed in DI water. Found inside – Page 371The mixture containing the smaller proportion of nitric acid dissolved iridium 20 times as fast as did ordinary aqua regia . When the ratio of nitric acid ... Found inside – Page 150Bulk chemical analysis involved weighing the initial samples , dissolving the Pt : Ru alloy electrodeposits in aqua regia ( a mixture of concentrated hydrochloric and nitric acids in the ratio of 3-4 to 1 ) , and then analyzing the resulting solution ... Found inside – Page 106Aqua - regia : Mixture of nitric acid and hydrochloric acid in ratio of 1 : 3 . Short Answer Type Questions- - 1 ( 2 marks each ) Q. 1. Found inside – Page 421HNO3 and HCl are sometimes mixed in a ratio of 3:1 rather than 1:3. This ratio is sometimes called an inverted aqua-regia and is used to oxidize sulfur and ... Found inside – Page 106Aqua - regia : Mixture of nitric acid and hydrochloric acid in ratio of 1 : 3 . Short Answer Type Questions- - 1 ( 2 marks each ) Q. 1. Found inside – Page 755Aqua regia — A mixture of conc. HN03 and HCI in the ratio 1 : 3. It is also known as kingly water. Aqua dag — A colloidal solution of graphite in water. Found inside – Page 106Aqua - regia : Mixture of nitric acid and hydrochloric acid in ratio of 1 : 3 . Short Answer Type Questions- - 1 ( 2 marks each ) Q. 1. Found inside – Page 29Explanation : Aqua regia is a mixture of concentrated Atomic number of given element Z is 2 + 8 + 2 ... is Magnesium (Mg), which is a metal. ratio of 3 : 1. Found inside – Page 106Aqua - regia : Mixture of nitric acid and hydrochloric acid in ratio of 1 : 3 . Short Answer Type Questions- - 1 ( 2 marks each ) Q. 1. Found inside – Page F-148Aqua regia is a mixture of (a) conc. HCl and conc. HNO3 in ratio of 3:1 (b) conc. ... HNO3 in the ratio of 2:1 Which of the following are mineral acids? Found inside – Page 31(a) Aqua-regia is a mixture of concentrated nitric acid and concentrated hydrochloric acid in the ratio 1 : 3 respectively. It is a very powerful oxidising ... Found inside – Page 358Samples of nickelore weighing 200-600 mg were treated with about 10 g of aqua regia ( 3 : 1 HCI , HNO3 ) , covered and heated until the reaction subsided . Found inside – Page 106Aqua - regia : Mixture of nitric acid and hydrochloric acid in ratio of 1 : 3 . Short Answer Type Questions- - 1 ( 2 marks each ) Q. 1. Found inside – Page 22Q. 21, Page 21] Ans. Correct option : (b) Explanation : Aqua regia is a mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio ... Found inside – Page 106Aqua - regia : Mixture of nitric acid and hydrochloric acid in ratio of 1 : 3 . Short Answer Type Questions- - 1 ( 2 marks each ) Q. 1. Found inside – Page 83What is aqua regia. Ans. Aqua regia is a mixture of concentrated nitric acid and concentrated hydrochloric acid taken in the ratio of 1:3. 1 Q. 6. Found inside – Page 106Aqua - regia : Mixture of nitric acid and hydrochloric acid in ratio of 1 : 3 . Short Answer Type Questions- - 1 ( 2 marks each ) Q. 1. Found inside – Page 76While aqua regia is a particularly effective mixture, there is nothing magic about the 3 : 1 HC1 : HN03 ratio. Many labs routinely employ a 1 : 1 ratio of ... Found inside – Page 29Q. 21, Page 21] Correct option : (b) Explanation : Aqua regia is a mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio of ... Found inside – Page 246A catalyst dust containing 13.7% Pt is leached in aqua regia (mixture of nitric and hydrochloric acids in 1:3 (approximate) molar ratio) forming ... Found insideAqua regia (3:1 HChHNO^) is a valuable mixture that must be prepared immediately ... Other ratios of hydrochloric acid to nitric acid are also employed. Found inside – Page 22Q. 21, Page 21] Ans. Correct option : (b) Explanation : Aqua regia is a mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio ... Found inside – Page 138H2sO4 Aqua regia is a mixture of (a) conc. HCl and conc. HNO3 in ratio of 3:1 (b) ... HNO3 in the ratio of 2:1 Which of the following are mineral acids? Found inside – Page 1435... adjusting the ratio of water to free sulfuric acid in the first leach ... c . subsequently subjecting thus - produced ignition residue to an aqua regia ... Found inside – Page 29Explanation : Aqua regia is a mixture of concentrated Atomic number of given element Z is 2 + 8 + 2 = 12. hydrochloric ... which is a metal. ratio of 3 : 1. Found inside – Page 29Explanation : Aqua regia is a mixture of concentrated Atomic number of given element Z is 2 + 8 + 2 = 12. hydrochloric ... which is a metal. ratio of 3 : 1. Found inside – Page 22The method involves treating small pellets ( approximately one to three centimeters in diameter ) of impure gold with a qua regia . Aqua regia is a mixture of concentrated HCl and concentrated HNO3 in a ratio of about 3-4 : 1 . It is extremely ... Found inside – Page 268... by extraction with aqua regia (mixture of hydrochloric and nitric acids in a ratio of 3:1) for the analysis of heavy metals as a control method. Found inside – Page 78Aquaregia is the mixture of (a) 3 parts of nitric acid and 1 part of ... then the ratio of total slant surface and area of the base is (a) 12 : 3 (b) 16 : 3 ... Found inside – Page 22Explanation : Aqua regia is a mixture of concentrated Atomic number of given element Z is 2 + 8 + 2 = 12. hydrochloric ... which is a metal. ratio of 3 : 1. Found inside – Page 19(a) a mixture of concentrated HCl and concentrated HNO3 in the ratio of 3:1 is called aqua regia (b) a mixture of dilute HCl and dilute HNO3 in the ratio of ... Found inside – Page 22Explanation : Aqua regia is a mixture of concentrated Atomic number of given element Z is 2 + 8 + 2 = 12. hydrochloric ... which is a metal. ratio of 3 : 1. Found inside – Page 29Q. 21, Page 21] Ans. Correct option : (b) Explanation : Aqua regia is a mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio ... Found inside – Page 7-109It is used in aqua-regia-a mixture of conc. HCl and conc. HNO3 in the ratio 3:1. Aqua-regia is used for dissolving noble metals like gold, and platinum. Found inside – Page 47All stirrer bars were soaked in aqua-regia (mixture of 3:1 volume ratio of nitric acid: hydrochloric acid) for at least 1 hour, washed with deionized water ... Found inside – Page 106( iv ) In preparing aqua - regia . Know the Terms ▻ Pnicogens : The nitrogen ... regia : Mixture of nitric acid and hydrochloric acid in ratio of 1 : 3 . Found inside – Page 15-6The ratio of milk to water in the mixture of vessels are as 3 : 2 , 2 : 1 and ... Aqua regia is a mixture containing 50 per cent concentrated HCL and 70 per ... Found inside – Page 332... powdered concrete was digested at room temperature in excess aqua regia, a mixture of concentrated hydrochloric and nitric acid in a ratio 3HC1:1HNO3. Found inside – Page 721Permittivity e is defined as ratio of electric displacement (D) to the applied electric ... Aqua regia (mixture of HNO3 and HCI in the ratio 1 : 3) 28. Found inside – Page 106Aqua - regia : Mixture of nitric acid and hydrochloric acid in ratio of 1 : 3 . 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