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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. 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.






2. If reagent has a bunch of oxygen






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






4. When bond angles deviate from ideal values






5. Refers to the =CH2 group






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






7. Combustion reaction occurs through a radical process






8. Carbon carbon triple bonds. Suffix-yne.






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






10. One s and three p orbitals






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






12. When boat flips






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






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






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






16. 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






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






18. Object that is not superimposable upon mirror image






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






20. Transfer of electrions from one atome to another






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






22. Diols with hydroxyl group on adjacent carbon






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






24. Nitrogen containing compound - longest chain attached to nitrogen used in backbone. use e and replace with AMINE. if more complex molecule present - use prefix amino. IF additional group added - use N-






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






26. Carbon double bonded to an oxygen






27. Common name for ethyne






28. A = observed rotation / concentration * length






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






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






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






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






33. Steps of free radical substitution






34. Highest energy no separation. or 120 separation.






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






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






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






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






39. Hydrocarbon with one or more carbon carbon triple bond






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






41. Not solvated






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






43. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal






44. One s and two p 120 degree apart






45. 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.






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






47. Name for mathanal






48. Methyl are 60 degrees apart. kinda stable






49. Kmno4






50. 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.







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