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  Item Reference: KCLCAL-1881-1882-673

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074 APPLIED SCIENCES Make free-hand drawing of crystals of quartz selenite and galena Three specimens were acted on by the reducing flame of the blowpipe two gave white malleable beads and one red malleable bead Name the resulting substances Describe the chief ores of iron What are Zeolites and where do they occur Eefer to two of them by name Write short description of diamond an amethyst garnet and ruby giving their chemical composition and physical characters If an unknown mineral were presented for examination before the blowpipe what series of operations might be required for its complete determination 10 Blende is sometimes mistaken for Wolfram How can the two be distinguished To what groups of metallic minerals do they respectively belong -Cfiemfetnn What is muriatic acid Describe the process for making it How many litres of air would be required for the combustion of 320 grammes of sulphur By what treatment are bones converted into "super- phosphate What renders this so valuable to the crop Describe and explain the process for preparing glucose What is this substance used for From what materials could you prepare an acid with which to engrave upon plate of glass What is meant by simple solvent Give some examples Give the chemical names and symbols for vermilion king's yellow nitre and Epsom salts Point out the difference in the manufacture of the older lucifer matches and those of Bryant and May
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