Calendar: 1869-1870 Page 524

526 APPLIED SCIENCES What are the teste of sulphates nitrates and chlbfides wfcen in solution ΐ Describe the oxides of nitrogen and state bow each may be procured SECOND ear Give an outline of tbe Welsh method of copper smelting What is the reaction which accompanies the formation of pimple copper and what is the object of the process of poling How do you recognize the presence of copper zinc and- mony silver and cobalt in an ore Give short description of the mode of determining the proportion of carben and hydrogen in an organic compound Illustrate what is meant by homologous series What is the principle of the humid process of assaying silver Give general account ot the method State the process of extracting lead from its ores and describe the extraction of silver from it by Pattinson's process and by cupellation Enumerate the most important metals which are precipitated by sulphuretted hydrogen from acid solutions and explain the mode in which amnionic hydro-sulpliate and potassic carbonate act when used as claesificatnry test FIRST YEAR Enumerate the saline iimuvities most frequently met with in spring-water State how tbe presence of each may be recognised What method is adopted in determining tbe hardness of water Ρ What is the effect of boiling spring-water upon ita hardness Explain the melhי which hard water may be softened How much nitric acid ulcl you obtain from 10 kilo- grammes of sodic nitrate si the whole were obtained as HNO