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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. When two atomic orbitals combine. obtained mathematically by adding or subtracting wave functions. if sings are the same - make bonding - if different - less stable antibonding.






2. Methyl are 60 degrees apart. kinda stable






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






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






5. Object that is not superimposable upon mirror image






6. Name for ethanal






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






8. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon






9. If a compound is able to rotate plane polarized light.






10. What is produced when o3 with lialh4 or nabh4






11. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z






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






13. Functionality is specified by alkoxy- prefix. ROR






14. A molecule with an internal plane of symmetry






15. Diol with hydroxyl group on same carbon






16. Carbon double bonded to an oxygen






17. Sharing of electron between atoms






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






19. A = observed rotation / concentration * length






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






21. Not solvated






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






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






24. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.






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






26. Solvents with protons in solution - e.g. water or alcohol. large atoms tend to be better nucleophiles in here because they can shed the solvating protons around them and are more polarizable






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






28. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene






29. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc






30. Hydrocarbon with one or more carbon carbon triple bond






31. Name for propanal






32. Common name for ethyne






33. F - CL - Br - I






34. What are the best leaving groups?






35. Is bonded to only one other carbon atom






36. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans






37. N - l - ml - ms






38. Alphabetical order of alkane rxn






39. Iso - neo - cyclo






40. Chain of carbons connected by single bonds with hydrogen atoms attached.






41. Formed by mixing different types of orbitals






42. Lowest priority group projects into the page






43. When boat flips






44. 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.






45. Use the Greek root for the number of carbons followed by the ending - - ane






46. Combustion reaction occurs through a radical process






47. Highest energy no separation. or 120 separation.






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






49. Moleculse that have the opposite configuration at their one chiral center. or if multiple chiral centers - must have the opposite configuration at every one of their chiral centers to be enantiomers. identical physical properties and much of the same






50. Goal is to produce most stable carbocation

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