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






2. Common name for ethyne






3. Transfer of electrions from one atome to another






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






5. Rotations cancel each other out therefore no optical activity






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






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






8. A = observed rotation / concentration * length






9. 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






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






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






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






13. Carbon carbon triple bonds. Suffix-yne.






14. Name for mathanal






15. A sigma bond and two pi bonds






16. 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






17. What are the best leaving groups?






18. Kmno4






19. Alphabetical order of alkane rxn






20. Name for ethanal






21. When boat flips






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






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






24. A molecule with an internal plane of symmetry






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






26. Methyl are 60 degrees apart. kinda stable






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






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






29. If reagent has a bunch of oxygen






30. Monosubstituted ethylene






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






32. Functionality is specified by alkoxy- prefix. ROR






33. M - chloroperoxybenzoic acid






34. O3






35. Object that is not superimposable upon mirror image






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






37. Charged - need electrons






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






39. 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






40. Highest energy no separation. or 120 separation.






41. Name for propanal






42. 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






43. Iso - neo - cyclo






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






45. Refers to the =CH2 group






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






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






48. Lowest priority group projects into the page






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






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