A Class-Book of Organic Chemistry Volume 1 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 Excerpt: ...used in preference to the older names of dextrose and laevulose? 4. Give the products of hydrolysis of the three principal disaccharoses. How is maltose prepared? How is it distinguished from glucose? 5. How are the following compounds inter-related: starch, dextrin, dextrose, mannitol, gluconic acid, and saccharic acid? 6. What is the experimental evidence for the conclusion that dextrose contains an aldehyde group and kevulose a ketone group? How does phenylhydrazine react with each of these sugars? 7. How can the hydrolysis of starch, cellulose, cane-sugar, inulin, and glycogen be effected? State the properties of their hydrolytic products. 8. To what class of bodies does glucose belong? Where does it occur? From what sources is it made, and how can it be recognised? 9. By what properties and reactions would you distinguish a solution of cane-sugar from a solution of glucose? 10. How would you demonstrate the production of glucose from cane-sugar and starch respectively? 11. What effect is produced on starch by the action of (1) heat, (2) dilute sulphuric acid, (3) nitric acid? 12. What are the principal differences between starch and cellulose? What evidence exists as to the molecular weights of these substances? 13. What is the action of (1) nitric acid, (2) sulphuric acid, and (3) caustic soda, on cellulose? 14. How are the following prepared: starch, British gum, guncotton, Willesden paper, celluloid, collodion, and cordite? 15. Describe and explain the changes which starch undergoes when acted on by malt extract. How could these changes be deihonstrated? 16. Classify the natural carbohydrates. Give any general methods for distinguishing these substances as a group. 17. How would you distinguish the following dissolved in water: (1) glucose, (2) inve...