3. What is the function of the concentrated sulphuric acid in this experiment? 4. Why is the reaction flask shaken frequently during the addition of the bromobenzene to the acid mixture? 5. Is the nitration reaction exothermic or endothermic? 6. Explain why 4-nitrobromobenzene (21) predominates in the product mixture over 2-nitrobromobenzene (22). 7. Using resonance structures, show why no detectable amount of 3- nitrobromobenzene is found in the product mixture.

3. What is the function of the concentrated sulphuric acid in this experiment? 4. Why is the reaction flask shaken frequently during the addition of the bromobenzene to the acid mixture? 5. Is the nitration reaction exothermic or endothermic? 6. Explain why 4-nitrobromobenzene (21) predominates in the product mixture over 2-nitrobromobenzene (22). 7. Using resonance structures, show why no detectable amount of 3- nitrobromobenzene is found in the product mixture.

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter25: Catalytic Hydrogenation

Section: Chapter Questions

Problem 3Q

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