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






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






3. If reagent has a bunch of oxygen






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






5. O3






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






7. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain






8. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced






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






10. A sigma bond and two pi bonds






11. Steps of free radical substitution






12. Diols with hydroxyl group on adjacent carbon






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






14. Sharing of electron between atoms






15. Hydrocarbon with one or more carbon carbon triple bond






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

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17. Zn/h or CH3/s with ozonolysis






18. Goal is to produce most stable carbocation

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19. Highest energy no separation. or 120 separation.






20. A molecule with an internal plane of symmetry






21. Methyl are 60 degrees apart. kinda stable






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






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






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






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






26. What is produced when o3 with lialh4 or nabh4






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






28. Two hydroxyl groups






29. Name for ethanal






30. Alphabetical order of alkane rxn






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






32. One s and two p 120 degree apart






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






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






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






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






37. 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






38. Transfer of electrions from one atome to another






39. Carbon carbon triple bonds. Suffix-yne.






40. 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.






41. One s and three p orbitals






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. Not solvated






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






46. 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.






47. Same molecular formula but different structure






48. Object that is not superimposable upon mirror image






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






50. Carbon double bonded to an oxygen