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MCAT Organic Chemistry

Subjects : mcat, science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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. Most favorable of staggared conformations






2. Arise from angle strain - torsional strian and nonbonded strain






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






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






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






6. Steps of free radical substitution






7. Name for ethanal






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






9. Highest energy no separation. or 120 separation.






10. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton






11. Rotations cancel each other out therefore no optical activity






12. 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.






13. Carbon with four different substituents and lack a plane of symmetry






14. A molecule with an internal plane of symmetry






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






16. Lowest priority group projects into the page






17. Two hydroxyl groups






18. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.






19. Hydrocarbon with one or more carbon carbon triple bond






20. No double bonds. it has the maximum number of hydrogens.






21. Functionality is specified by alkoxy- prefix. ROR






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






23. Monosubstituted ethylene






24. Transfer of electrions from one atome to another






25. Alphabetical order of alkane rxn






26. 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-






27. M - chloroperoxybenzoic acid






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






29. Diols with hydroxyl group on adjacent carbon






30. 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.






31. Formed by mixing different types of orbitals






32. Goal is to produce most stable carbocation

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33. A = observed rotation / concentration * length






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






35. Di - tri - t - sec - n -






36. Results when cyclic molecules must assume conformations that have eclipsed interactions






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






38. Is bonded to only one other carbon atom






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






40. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.






41. 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






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

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43. Name for propanal






44. O3






45. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.






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






47. Kmno4






48. Spatial arrangement of the atoms or groups of a sterioisomer






49. Object that is not superimposable upon mirror image






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