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MCAT Organic Chemistry

Subjects : mcat, science
Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space






2. 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.






3. Carbon carbon triple bonds. Suffix-yne.






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






5. N - l - ml - ms






6. Name for ethanal






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






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






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. Di - tri - t - sec - n -






11. Most favorable of staggared conformations






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






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






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






15. Hydrocarbon with one or more carbon carbon triple bond






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






17. Charged - need electrons






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






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






20. A sigma bond and two pi bonds






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






22. What are the best leaving groups?






23. Compounds with halogen






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






25. Transfer of electrions from one atome to another






26. Name for propanal






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

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28. Methyl are 60 degrees apart. kinda stable






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






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






31. Diols with hydroxyl group on adjacent carbon






32. If reagent has a bunch of oxygen






33. 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






34. Functionality is specified by alkoxy- prefix. ROR






35. 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.






36. Name for mathanal






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






38. Steps of free radical substitution






39. Iso - neo - cyclo






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






41. Combustion reaction occurs through a radical process






42. Common name for ethyne






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






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






45. F - CL - Br - I






46. One s and three p orbitals






47. Object that is not superimposable upon mirror image






48. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.






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






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