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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. Same molecular formula but different structure






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






3. 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.






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






5. When bond angles deviate from ideal values






6. Highest energy no separation. or 120 separation.






7. One s and two p 120 degree apart






8. Transfer of electrions from one atome to another






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






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






11. Propylenes attached to a backbone at the C-3 position. Meaning the double bond at end of the chain and single bonded carbon at rest






12. 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-






13. Refers to the =CH2 group






14. 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






15. Monosubstituted ethylene






16. Methyl are 60 degrees apart. kinda stable






17. Goal is to produce most stable carbocation

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18. Compounds with halogen






19. Sharing of electron between atoms






20. 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.






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






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






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






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






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






26. F - CL - Br - I






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






28. Carbon carbon triple bonds. Suffix-yne.






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






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






31. Name for propanal






32. What is produced when o3 with lialh4 or nabh4






33. Iso - neo - cyclo






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






35. A sigma bond and two pi bonds






36. 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






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






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






39. What are the best leaving groups?






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






41. Rotations cancel each other out therefore no optical activity






42. Functionality is specified by alkoxy- prefix. ROR






43. Diol with hydroxyl group on same carbon






44. 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.






45. Two hydroxyl groups






46. Object that is not superimposable upon mirror image






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






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






49. Is bonded to only one other carbon atom






50. O3






Can you answer 50 questions in 15 minutes?



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