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University of New Zealand.
B.A. Pass Examination, 1885.
Chemistry.
Paper b.
Examiner: Prof. W. A. Tilden, D.Sc., F.R.S.
1. | How are the following anhydrides obtained?—N2O5, SO3, (C2H3O)2O, and (CH2CO)2O. |
2. | 10 c. c. of a gas are mixed with 50 c. c. of oxygen in a eudiometer, and exploded. The volume of gas remaining was 35 c. c., and of this 30 c. c. were absorbed by potash. Supposing the gas to have been a hydrocarbon what was its formula? |
3. | Give some examples of the influence of "mass" in determining chemical reactions, and explain them. |
4. | How is hydrocyanic acid prepared, and how would you detect its presence in an article of food, such as milk? |
5. | Write down the formulæ for propylic and isopropylic alcohols and for the products formed from them by oxidation. |
6. | Give briefly the properties of cane sugar and dextro-glucose and the tests by which they may be recognized. |