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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. Refers to the =CH2 group






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






3. F - CL - Br - I






4. Kmno4






5. One s and three p orbitals






6. 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.






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






8. 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.






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






10. 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






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






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






13. Combustion reaction occurs through a radical process






14. A molecule with an internal plane of symmetry






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






16. When bond angles deviate from ideal values






17. Name for mathanal






18. 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






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






20. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol






21. One s and two p 120 degree apart






22. Iso - neo - cyclo






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






25. A sigma bond and two pi bonds






26. 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






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






28. Lowest priority group projects into the page






29. Alphabetical order of alkane rxn






30. Charged - need electrons






31. Carbon double bonded to an oxygen






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






33. Formed by mixing different types of orbitals






34. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation






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






36. When boat flips






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






38. O3






39. Name for ethanal






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






41. Methyl are 60 degrees apart. kinda stable






42. Most favorable of staggared conformations






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






44. Not solvated






45. Is bonded to only one other carbon atom






46. Name for propanal






47. Common name for ethyne






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






49. What are the best leaving groups?






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