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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. Carbon double bonded to an oxygen






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






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






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






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






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






7. Diols with hydroxyl group on adjacent carbon






8. A molecule with an internal plane of symmetry






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






10. Methyl are 60 degrees apart. kinda stable






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






12. When boat flips






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






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






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






16. Carbon carbon triple bonds. Suffix-yne.






17. Transfer of electrions from one atome to another






18. Zn/h or CH3/s with ozonolysis






19. Goal is to produce most stable carbocation


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






21. One s and three p orbitals






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






23. Not solvated






24. Most favorable of staggared conformations






25. M - chloroperoxybenzoic acid






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






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






28. Name for ethanal






29. 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






30. 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






31. Common name for ethyne






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






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






34. 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.






35. Is bonded to only one other carbon atom






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






37. When bond angles deviate from ideal values






38. 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.






39. N - l - ml - ms






40. What are the best leaving groups?






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






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


43. If reagent has a bunch of oxygen






44. Steps of free radical substitution






45. Share molecular formula but have different chemical and physical properties






46. Rotations cancel each other out therefore no optical activity






47. Name for mathanal






48. 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.






49. Hydrocarbon with one or more carbon carbon triple bond






50. Refers to the =CH2 group