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






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






3. Not solvated






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






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






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






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






8. Reducing an alkene by adding molecular hydrogen to double bond with aid of metal catalyst. e.g. pt - pd - ni. takes place on surface of metal so it does syn addition






9. Methyl are 60 degrees apart. kinda stable






10. Lowest priority group projects into the page






11. Diol with hydroxyl group on same carbon






12. One s and two p 120 degree apart






13. 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






14. Zn/h or CH3/s with ozonolysis






15. Monosubstituted ethylene






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






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






18. Carbon double bonded to an oxygen






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






20. When boat flips






21. Compounds with halogen






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






23. Is bonded to only one other carbon atom






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






25. What are the best leaving groups?






26. Formed by mixing different types of orbitals






27. 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.






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






29. If reagent has a bunch of oxygen






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






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






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






33. Name for ethanal






34. Sharing of electron between atoms






35. Functionality is specified by alkoxy- prefix. ROR






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






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






38. Combustion reaction occurs through a radical process






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






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






41. Rotations cancel each other out therefore no optical activity






42. Charged - need electrons






43. 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






44. 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.






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






46. Diols with hydroxyl group on adjacent carbon






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






48. Steps of free radical substitution






49. Kmno4






50. F - CL - Br - I







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