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MCAT Organic Chemistry

Subjects : mcat, science
Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Results when nonadjacent atoms or groups compete for space. dominant source of energy in flagpole interactions of the boat conformation. thus it goes in various conformations like chair boat and twist.






2. Methyl are 60 degrees apart. kinda stable






3. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule






4. Kmno4






5. Alphabetical order of alkane rxn






6. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution






7. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart






8. Diol with hydroxyl group on same carbon






9. Carbonyl located in middle or somewhere in chane. Named with One






10. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol






11. Formed by mixing different types of orbitals






12. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition






13. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.

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14. Most similar. same molecule only at different points in their rotation. show them with newmans projections






15. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'






16. Same molecular formula but different structure






17. Monosubstituted ethylene






18. Share molecular formula but have different chemical and physical properties






19. Object that is not superimposable upon mirror image






20. Two hydroxyl groups






21. Describes the exact spatial arrangement of groups of atoms independent of other molecules.






22. O3






23. How many stereoisomers can a molecule have with n chiral centers






24. Non mirror image of configurational isomers. cis and trans alkenes are them. possible when a molecule has two or more stereogenic centers that differ at some but not alll of the centers. they require multiple chiral centers.






25. Goal is to produce most stable carbocation

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26. Iso - neo - cyclo






27. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal






28. Highest energy no separation. or 120 separation.






29. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O






30. M - chloroperoxybenzoic acid






31. Nitrogen containing compound - longest chain attached to nitrogen used in backbone. use e and replace with AMINE. if more complex molecule present - use prefix amino. IF additional group added - use N-






32. Sharing of electron between atoms






33. A = observed rotation / concentration * length






34. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane






35. Not solvated






36. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation






37. What are the best leaving groups?






38. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space






39. Hydrocarbon with one or more carbon carbon triple bond






40. One s and two p 120 degree apart






41. Di - tri - t - sec - n -






42. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.






43. Is bonded to only one other carbon atom






44. Refers to the =CH2 group






45. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.






46. Diols with hydroxyl group on adjacent carbon






47. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image






48. A molecule with an internal plane of symmetry






49. Compounds with halogen






50. Reaction of alkane with oxygen to form carbon dioxide - water and heat.