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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. Diol with hydroxyl group on same carbon






2. 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






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






4. O3






5. Hydrocarbon with one or more carbon carbon triple bond






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






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






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






9. Rotations cancel each other out therefore no optical activity






10. Kmno4






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






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






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






14. Diols with hydroxyl group on adjacent carbon






15. What is produced when o3 with lialh4 or nabh4






16. If reagent has a bunch of oxygen






17. Nucleus lover. electron rich species that are attracked to charged atoms






18. 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.






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






20. Alphabetical order of alkane rxn






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






22. N - l - ml - ms






23. 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.






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






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






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

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27. Goal is to produce most stable carbocation

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






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






30. Charged - need electrons






31. Same molecular formula but different structure






32. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4






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






34. A = observed rotation / concentration * length






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






36. Carbon double bonded to an oxygen






37. Monosubstituted ethylene






38. Highest energy no separation. or 120 separation.






39. Object that is not superimposable upon mirror image






40. One s and two p 120 degree apart






41. Functionality is specified by alkoxy- prefix. ROR






42. 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.






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






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






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






46. What are the best leaving groups?






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






48. A sigma bond and two pi bonds






49. Di - tri - t - sec - n -






50. Most favorable of staggared conformations