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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.
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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. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton






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






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






4. Rotations cancel each other out therefore no optical activity






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






6. N - l - ml - ms






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






8. Combustion reaction occurs through a radical process






9. Iso - neo - cyclo






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






11. Charged - need electrons






12. F - CL - Br - I






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. Alphabetical order of alkane rxn






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






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






17. Same molecular formula but different structure






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






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






21. What are the best leaving groups?






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






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






24. Sharing of electron between atoms






25. 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.






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






27. Name for mathanal






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






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






30. M - chloroperoxybenzoic acid






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






32. Di - tri - t - sec - n -






33. Compounds with halogen






34. Lowest priority group projects into the page






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






36. Steps of free radical substitution






37. One s and two p 120 degree apart






38. 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.






39. Zn/h or CH3/s with ozonolysis






40. Object that is not superimposable upon mirror image






41. Name for propanal






42. Not solvated






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






44. A molecule with an internal plane of symmetry






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






46. Carbon carbon triple bonds. Suffix-yne.






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






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






49. When bond angles deviate from ideal values






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







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