practice 3 - 030.205 Practice 3 for Exam 1A 1 1) Melatonin...

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030.205 Practice 3 for Exam 1A
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1 1) Melatonin is a hormone found in all living creatures, and it is believed to play a role in regulating the sleep cycle. The structure of melatonin incorporates two nitrogen atoms. Identify the hybridization state and geometry of each nitrogen atom, placing your answers in the boxes provided: N N O OCH 3 H H melatonin hybridization state = ________ geometry = _______________ hybridization state = ________ geometry = _______________ 2) Consider the three compounds shown below, and then answer the questions that follow: HC H H C H H CC H NH H H C C N C C H H H H H H H HH H H C H H H H N Compound A Compound B Compound C a) Identify the two compounds that are constitutional isomers. Place a circle around the correct answer below: A + B B + C A + C b) Identify which compound(s) contains a nitrogen atom with trigonal pyramidal geometry: A B C c) Identify the compound with the greatest number of sigma bonds: A B C d) Identify the compound with the fewest number of sigma bonds: A B C e) Identify the compound that contains more than one pi bond: A B C f) Identify the compound that contains an sp 2
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This note was uploaded on 10/03/2010 for the course OCHEM 102.224 taught by Professor Klein during the Spring '10 term at Johns Hopkins.

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practice 3 - 030.205 Practice 3 for Exam 1A 1 1) Melatonin...

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