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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. Iso - neo - cyclo






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






4. When bond angles deviate from ideal values






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






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






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






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






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






10. Carbon carbon triple bonds. Suffix-yne.






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






12. Compounds with halogen






13. Reducing an alkene by adding molecular hydrogen to double bond with aid of metal catalyst. e.g. pt - pd - ni. takes place on surface of metal so it does syn addition






14. Most favorable of staggared conformations






15. Steps of free radical substitution






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






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






18. Highest energy no separation. or 120 separation.






19. 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.






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






21. A molecule with an internal plane of symmetry






22. Formed by mixing different types of orbitals






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






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






25. Charged - need electrons






26. Hydrocarbon with one or more carbon carbon triple bond






27. Name for propanal






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






29. If reagent has a bunch of oxygen






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






31. 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.






32. Common name for ethyne






33. Name for ethanal






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






35. One s and two p 120 degree apart






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






37. Lowest priority group projects into the page






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






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






40. Carbon double bonded to an oxygen






41. Two hydroxyl groups






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






43. M - chloroperoxybenzoic acid






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






45. A sigma bond and two pi bonds






46. 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-






47. Sharing of electron between atoms






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






49. F - CL - Br - I






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