Exam-3-1 - CHE 201/203 Fall 2007 Midterm Exam-3 Name...

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Exam-3.doc - 1 - CHE 201/203 Fall 2007 Midterm Exam-3 November 30, 2007 Name: (please print) Section: CHE Person #: Signature: Problem Maximum points Actual points 1. 40 2. 10 3. 25 4. 15 5. 20 6. 25 7. 15 8 . (extra credit) 10 Total maximum 160 Your total
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Exam-3.doc - 2 - 1. (40 pts) True or False. a) When HBr reacts with an asymmetrical alkene via radical addition, the bromine atom attaches to the less substituted alkene C-atom. b) Alkenes usually act as electrophiles. c) Electrophilic addition reactions of alkenes involve carbocation intermediates that do not rearrange. d) A strong acid is often consumed in the hydration reactions of alkenes. e). The Markovnikov’s rule is applicable to a wide variety of addition reactions involving alkenes and many electrophiles. f) Terminal alkynes are more acidic than ammonia. g) An acetylide cannot be generated by treating a terminal alkyne with an alkyllithium reagent. h) Alkoxide ions can exist in their corresponding alcohols.
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