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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. What are the best leaving groups?






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






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






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






5. Rotations cancel each other out therefore no optical activity






6. 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






7. 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-






8. If reagent has a bunch of oxygen






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






10. Is bonded to only one other carbon atom






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






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

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13. Two hydroxyl groups






14. Refers to the =CH2 group






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






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






17. Zn/h or CH3/s with ozonolysis






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






19. Charged - need electrons






20. A molecule with an internal plane of symmetry






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






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






23. Alphabetical order of alkane rxn






24. A = observed rotation / concentration * length






25. 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






26. Steps of free radical substitution






27. A sigma bond and two pi bonds






28. F - CL - Br - I






29. Goal is to produce most stable carbocation

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






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






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






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






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






35. Propylenes attached to a backbone at the C-3 position. Meaning the double bond at end of the chain and single bonded carbon at rest






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






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






38. Name for mathanal






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






40. Compounds with halogen






41. M - chloroperoxybenzoic acid






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






43. O3






44. Methyl are 60 degrees apart. kinda stable






45. Iso - neo - cyclo






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






47. Diol with hydroxyl group on same carbon






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






49. One s and two p 120 degree apart






50. Monosubstituted ethylene