fall00org1q2

fall00org1q2 - 11-13) Circle (or draw in) the C-H bond in...

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Fall 00: Quiz 2. Ch 4-6 20points N a m e If you do not want your graded quiz placed in the box outside my office, then please tick here (1 and 3-10) are True or False. 1) The mirror image of a chiral molecule is superimposable upon the original molecule. 2) Name an everyday object which is chiral (and not a part of your body or an item of clothing). 3) An optically active mixture contains equal amounts of R and S enantiomers. 4) A favorable entropy change results from in increase in disorder. 5) The lower the bond dissociation energy of a bond, the easier it is to break. 6) This molecule is chiral. CO 2 CH 3 CH 3 H 3 C Cl H 3 C CO 2 CH 3 7) This molecule is chiral. OH Br 8) These compounds are enantiomers. H Br CH 3 F F Br H CH 3 9) S N 1 reactions always proceed with total inversion of stereochemistry. Fall00-org1quiz2 Page1
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10) A nucleophilic substitution is a reaction where a nucleophilic species replaces another group or atom in a molecule.
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Unformatted text preview: 11-13) Circle (or draw in) the C-H bond in each molecule that has the lowest bond dissociation energy: 11) CH 3-CH 2-CH 3 12) 13) 14) State the Saytzeff rule concerning eliminations 15) Give two characteristics of an E2 process. 16) After a carbocation has been formed, four possible things can happen: name two. Fall00-org1quiz2 Page2 17) Star (asterix, *) and assign the (R) or (S) configuration to any chiral centers in the below molecule. Br H CH 3 H 3 C Br H 18) Is this compound the meso or (dl) diastereomer? 19) Is the compound in (17) chiral or achiral? 20) Is the below reaction an elimination, substitution or neither? CH 3 CHBrCHBrCH 3 KI + I-Br + KBr * BONUS QUESTION for 1 extra point * State and justify briefly which in your opinion, is the more important concept: Kinetics, Mechanism or Thermodynamics. Fall00-org1quiz2 Page3...
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This note was uploaded on 11/26/2011 for the course CHEM 250 taught by Professor Burche during the Fall '11 term at Rutgers.

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fall00org1q2 - 11-13) Circle (or draw in) the C-H bond in...

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