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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. Transfer of electrions from one atome to another






2. Most favorable of staggared conformations






3. 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






4. Carbon carbon triple bonds. Suffix-yne.






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


6. One s and three p orbitals






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






8. Same molecular formula but different structure






9. Name for ethanal






10. When boat flips






11. Charged - need electrons






12. 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






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






14. 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.






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






16. Name for mathanal






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






18. 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-






19. 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






20. N - l - ml - ms






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






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






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






24. Not solvated






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






26. Diol with hydroxyl group on same carbon






27. Combustion reaction occurs through a radical process






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






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






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






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






32. Highest energy no separation. or 120 separation.






33. Carbon double bonded to an oxygen






34. Common name for ethyne






35. Di - tri - t - sec - n -






36. A molecule with an internal plane of symmetry






37. 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.






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






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






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






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






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






43. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4






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






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






46. Diols with hydroxyl group on adjacent carbon






47. A = observed rotation / concentration * length






48. Rotations cancel each other out therefore no optical activity






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






50. What are the best leaving groups?