Calendar: 1850-1851 Page 329

APPLIED SCIENCES 32ϋ II -Cj t1ttfetn Enumerate the elementary bodies which occur naturally as gases Give the chemical symbol and the combining number of each on the Hydrogen scale State which of them have been liquefied and give the characteristic properties of each Describe the properties of common Salt where is it principally met with Explain the mode in which Hydrochloric Acid and Carbonate of Soda are manufactured from it What is the composition of Iron Pyrites How is it em- ployed in the manufacture of Sulphuric Acid Explain the necessity of Nitre to the success of this operation What are the properties of Sulphuric Acid and the tests of its purity Give the composition of Cyanogen How is it procured Mention its compounds with Oxygen How is Hydrocyanic Acid prepared By what tests may it be recognised Exemplify and explain the term Chemical Equivalent Describe the compounds of Carbon with Oxygen and state how each may be prepared and recognised Exemplify the different functions of water in combination What are the proofs of its compound nature What is Silica How is it obtained in state of purity Mention its chemical characters Describe the mode of obtaining Olefiant Gas Give its composition mode of condensation and chemical properties What difference is there between Olefiant Gas and Marsh Gas State the products of their detonation with Oxygen and the relative proportions of the gases produced III -Ci nms'tn 10 Illustrate and explain Mariotte's law of the condensation of gases under pressure If 10 cubic inches of gas be measured at pressure equal to 28 inches of Mercury what would be its corrected volume at the standard pressure