PREPARATORY PROBLEMS - IChO 2019

PREPARATORY PROBLEMS Making science together! Third edition (19-6-3) 51st IChO PREPARATORY PROBLEMS 2 Table of contents Preface .. 3 Fields of advanced difficulty .. 5 Theoretical PROBLEMS .. 10 Problem 1. Butadiene -electron system .. 11 Problem 2. Localization and delocalization in benzene .. 13 Problem 3. Study of liquid benzene hydrogenation .. 15 Problem 4. Use of dihydrogen: fuel cells .. 16 Problem 5. Hydrogen storage .. 18 Problem 6. Deacidification and desulfurization of natural gas .. 22 Problem 7. Lavoisier s experiment .. 25 Problem 8. Which wine is it? Blind tasting challenge .. 26 Problem 9. Nitrophenols: synthesis and physical properties .. 27 Problem 10. French stone flower .. 31 Problem 11. The mineral of winners .. 33 Problem 12. Reaction progress kinetics.

Stereochemistry: stereoisomers in organic and inorganic chemistry, stereoselectivity in organic synthesis. Practical 1. Techniques in organic synthesis (drying of a precipitate, recrystallization, TLC). 2. Use of a spectrophotometer (mono-wavelength measurements). Important notes

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  Synthesis, Organic, Inorganic, Stereoselectivity, Stereoselectivity in organic synthesis, In organic, In organic synthesis

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