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MCAT Organic Chemistry

Subjects : mcat, science
Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. Hydrocarbon with one or more carbon carbon triple bond






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






3. Formed by mixing different types of orbitals






4. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space






5. Diol with hydroxyl group on same carbon






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






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






8. One s and three p orbitals






9. F - CL - Br - I






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






11. Carbon double bonded to an oxygen






12. 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






13. O3






14. Two hydroxyl groups






15. Transfer of electrions from one atome to another






16. Di - tri - t - sec - n -






17. Kmno4






18. 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






19. Name for mathanal






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






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






22. One s and two p 120 degree apart






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






24. A = observed rotation / concentration * length






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






26. When boat flips






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






28. Methyl are 60 degrees apart. kinda stable






29. Refers to the =CH2 group






30. Diols with hydroxyl group on adjacent carbon






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


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






33. Iso - neo - cyclo






34. 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.






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






36. 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.






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






38. Name for ethanal






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






40. Same molecular formula but different structure






41. Alphabetical order of alkane rxn






42. Most favorable of staggared conformations






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






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. Charged - need electrons






46. Functionality is specified by alkoxy- prefix. ROR






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






48. 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






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






50. What is produced when o3 with lialh4 or nabh4