Chapter 20 practice questions - 1 Which is a correct IUPAC...

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1. Which is a correct IUPAC name for the following substance? N a) N -Cyclopentyl- N -methylcyclopentanamine b) N -Cyclohexyl- N -methylcyclopentanamine c) N -Cyclopentyl- N -methylcyclohexanamine d) Dicyclopentylmethylamine e) N -Pentyl- N -methylpentanamine Answer: A 2. The correct structure of bicyclo[1.1.0]butan-1-amine is? 3. Compound W has the molecular formula C 11 H 17 N. Treatment of W with benzenesulfonyl chloride in base gives no reaction. Acidification of the resulting mixture gives a clear solution. The 1 H NMR spectrum of W consists of:
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triplet, 1.0 quartet, 2.5 singlet, 3.6 (2H) multiplet, 7.3 (5H) The most likely structure for W is: a) N H b) N c) N d) N e) N Answer: B 4. Which of the following compounds would be the weakest base? II III IV V I NH 2 O NH 2 NH 2 O 2 N NH 2 NH 2 5. Which of the following compounds would be the strongest base?
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NH 2 II III IV V I N H N N OH N O 6. Which of these is the strongest acid?
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  • Fall '09
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