Calendar: 1861-1862 Page 532

MEDICAL DEPARTMENT IV -Cljtmtfitru Describe the action of the mouth blowpipe and explain how it may be made either to effect reduction or oxidation What is the law of volumes in gases How is pure hydrochloric acid obtained in solution What are its ordinary impurities How may each of them be re- cognised Explain the difference of the result when nitre is decom- posed by equivalent of oil of vitriol from that obtained when equivalents of the acid are used What are the properties of nitric acid How is it recognised when present only in small quantity in mixture Sketch the process for obtaining bromine How may bromine be distinguished from chlorine and from iodine Describe the preparation of chlorate of potash and the effects of heat and of oil of vitriol upon it What is aqua regia Give some account of its propertie and uses How is phosphuretted hydrogen procured What are its leading chemical characters