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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. Not solvated






2. Rotations cancel each other out therefore no optical activity






3. 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






4. 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.






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






6. Combustion reaction occurs through a radical process






7. Carbon carbon triple bonds. Suffix-yne.






8. One s and two p 120 degree apart






9. Diols with hydroxyl group on adjacent carbon






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






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






12. Refers to the =CH2 group






13. When bond angles deviate from ideal values






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






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






16. What are the best leaving groups?






17. Carbon double bonded to an oxygen






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






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






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






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






22. Sharing of electron between atoms






23. Hydrocarbon with one or more carbon carbon triple bond






24. Steps of free radical substitution






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






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






27. Two hydroxyl groups






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






29. Name for ethanal






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






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






32. 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






33. What is produced when o3 with lialh4 or nabh4






34. A molecule with an internal plane of symmetry






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






36. Kmno4






37. Name for mathanal






38. Same molecular formula but different structure






39. Functionality is specified by alkoxy- prefix. ROR






40. Formed by mixing different types of orbitals






41. Zn/h or CH3/s with ozonolysis






42. 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.






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






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






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






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






47. Charged - need electrons






48. Goal is to produce most stable carbocation

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49. 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-






50. Monosubstituted ethylene