7. Describe in detail the manufacture of any three of the following: peat, carbon bisulphide, calcium nitrate, potassium nitrate. 8. Describe and explain in full either the manufacture of nitroglycerine, or of portland cement. 9. Give a general account of the manufacture and classes of ceramic materials. Describe the mode of working of a Hoffmann ring furnace. GENERAL CHEMISTRY III. Courses B and D, Science). ADVANCED INORGANIC CHEMISTRY. (Final Honours Arts). 1. From a mixture of sodium and potassium chlorides, how can the individual salts be obtained? Sodium sulphate and magnesium sulphate can form a double salt, astrakanite. Is it possible from a given mixture of the two sulphates to obtain both single salts and the double salt? Give clearly your answer. 2. By what different methods are peracids obtained? Give examples describing simple illustrative experiments. Distinguish between the different persulphates. What arguments are there for the formula H2SO, for Caro's acid? 3. Give an account of different methods tried for preparing titanium; or, discuss its compounds. 4. What are the successive steps in the disintegration of radium. Show how a number of these steps may be traced. What proof is there that helium is produced in the course of the disintegrations? 5. Discuss any subject in inorganic chemistry in a manner suitable to the grade of this examination. FINAL HONOURS. HISTORY OF CHEMISTRY. Write on five of the following subjects: 1. Trace the development of stereochemistry from Biot to Werner. 2. Discuss the history and significance of the "two volume" standard for molecular weights. 3. Show how Gerhardt used the idea that all chemical change is the result of double decomposition, and how it applied to his synthesis of the acid anhydrides. 4. Write an outline of the development of the idea of radicals in chemical compounds, and connect it with Gerhardt's type theory. 5. Discuss the significance of the synthesis of urea. 6. Follow the development of the atomic theory from 1808 to 1844. 7. Discuss the earlier attempts to explain the phenomena of oxidation. |