In the manufacture of chlorine, ammonium chloride, and glucose (from corn starch) It dissolves noble metals such as Au, Pt, etc.Īu + 4H + + NO - + 4Cl - → AuCl – 4 + NO + 2H 2OģPt + 16H + + 4NO - 3 + 18Cl - → 3PtCl 2- 6 + 4NO + 8H 2O HCl (g) + H 2O (l) → H 3O + (aq) + Cl - (aq)Īqua regia is a mixture of 3 parts of concentrated hydrochloric acid and 1 part of concentrated nitric acid. It is extremely soluble in water and ionises as Concentrated H 2SO 4 is poured from thistle funnel till its lower end is completely immersed in sulphuric acid. This is done by taking sodium chloride (i.e., rock salt) in dry round bottomed flask. In laboratory, hydrogen chloride gas is prepared by heating sodium chloride with concentrated sulphuric acid.It is also present in the form of gastric juice in the stomach of mammals. Hydrogen chloride was first prepared by Glauber in 1648 by heating rock salt with concentrated sulphuric acid.Ī small quantity of hydrogen chloride gas is found in free state in gases given out by erupting volcanoes. Frank ICSE Solutions for Class 10 Chemistry. Selina Chemistry ICSE Solutions for Class 10.
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