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The Pamphlet Collection of Sir Robert Stout: Volume 50

University of New Zealand. — Junior Scholarship Examination. — Chemistry

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University of New Zealand.

Junior Scholarship Examination.


1.Explain, with equations, the action of heat on the following compounds:—CaCO3, H2CrO4, H3PO4, NaHCO3, KHSO4, MnO2, AuCl3, FeSO47H2O, H2SO4, H2O.
2.Show, with equations, the action of chlorine on the following bodies:—HgO, P, Ca(HO)2, KHO, KI, H2O, H2S, Sn.
3.In what respects do chlorine bromine and iodine resemble each other?
4.State what you know of the allotropic forms of carbon.
5.Describe fully, using equations, the process for manufacturing ammonia from the ammoniacal liquor of gasworks.
6.Show how phosphoric acid is manufactured from bones.
7.State what you know of the chlorides of mercury—their names, formulas, vapour-density, manufacture, properties, tests.
8.Describe, with equations, the chemical changes that take place in the blast furnace.
9.Explain, giving the equations, how aluminium is manufactured on the large scale.
10.Write down three equations for making H2S; and show by equations the action of that gas on acid solutions of salts of the following metals:—Cu. Bi, Hg, As, Sb, Sn, Pb, Cd.
11.A solution containing nitrates of silver, copper, iron, and calcium is put into your hands. How would you separate the metals so as to get each of them on a different filter paper?
12.Describe a process for extracting silver from silver-bearing galena.