8B_quiz4b-key - Chem 8B winter 2008 Quiz#4B Name KEY(Last...

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Chem 8B, winter 2008 Name: ______ KEY _______________ Quiz #4B (Last, First) ( print clearly) TA or section: _________________________ • DO NOT start the quiz until you are instructed. • You must stop writing and turn in your quiz when time is called. • Ambiguous or incomplete answers will not get full credit. • Please give clear and concise answers – a single sentence or phrase should be sufficient to accurately convey the information required. “Brevity is the soul of wit” – Shakespeare Problem # Score 1. [10] ________ 2. [8] ________ 3. [14] ________ 4. [8] ________ Total [40] ________/40 Bonus [5] _________
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Chem 8B, quiz 4B 1. a) Please indicate true (T) or false (F) for the following statements based on lab and lecture materials (2 pts each): __ F __ The reaction of a grignard reagent with a ketone is faster than the reaction of a grignard reagent with an aldehyde because the ketone is more electrophilic than the aldehyde. __ T __ An azo group and a carbonyl group will absorb in the visible region when they are part of a conjugated system. __ F __ Because of the presence of charged groups, wool and silk are not directly dyeable with cationic and anionic dyes.
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  • Fall '07
  • Lievens
  • Organic chemistry, Nucleophilic Aromatic Substitution, Electrophilic aromatic substitution, Mannose, Chem 8B

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