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






2. Not solvated






3. Monosubstituted ethylene






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






5. F - CL - Br - I






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






7. What is produced when o3 with lialh4 or nabh4






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






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






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






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






12. A molecule with an internal plane of symmetry






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






14. 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






15. A = observed rotation / concentration * length






16. Methyl are 60 degrees apart. kinda stable






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






18. Diol with hydroxyl group on same carbon






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






20. Goal is to produce most stable carbocation

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21. Iso - neo - cyclo






22. Sharing of electron between atoms






23. If reagent has a bunch of oxygen






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






25. M - chloroperoxybenzoic acid






26. Steps of free radical substitution






27. Transfer of electrions from one atome to another






28. N - l - ml - ms






29. Charged - need electrons






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






31. Compounds with halogen






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






33. When boat flips






34. A sigma bond and two pi bonds






35. 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.






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






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






38. Di - tri - t - sec - n -






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

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40. 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






41. Refers to the =CH2 group






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






43. Zn/h or CH3/s with ozonolysis






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






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






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






47. 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-






48. When bond angles deviate from ideal values






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






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