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






2. Zn/h or CH3/s with ozonolysis






3. Name for propanal






4. A sigma bond and two pi bonds






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






6. Diols with hydroxyl group on adjacent carbon






7. Carbon double bonded to an oxygen






8. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.






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






10. M - chloroperoxybenzoic acid






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






12. Hydrocarbon with one or more carbon carbon triple bond






13. When bond angles deviate from ideal values






14. 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






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

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16. Transfer of electrions from one atome to another






17. Is bonded to only one other carbon atom






18. A molecule with an internal plane of symmetry






19. 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.






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






21. Functionality is specified by alkoxy- prefix. ROR






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






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






24. Alphabetical order of alkane rxn






25. Steps of free radical substitution






26. When boat flips






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






28. Di - tri - t - sec - n -






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






30. 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






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






32. What are the best leaving groups?






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






34. Lowest priority group projects into the page






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






36. Name for mathanal






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






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






40. Combustion reaction occurs through a radical process






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






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






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






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






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






46. Iso - neo - cyclo






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






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






50. Occur when a molecule is broken down by heat. used to reduce the avverage molecular weight of heavy oils. c - c - bonds are cleave dand make small chain alkyl radicals that recombine to form different alkanes