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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. M - chloroperoxybenzoic acid






2. 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.






3. Diol with hydroxyl group on same carbon






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






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






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






7. Name for propanal






8. Arise from angle strain - torsional strian and nonbonded strain






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






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






11. Is bonded to only one other carbon atom






12. Goal is to produce most stable carbocation

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






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






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






16. 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






17. When boat flips






18. A sigma bond and two pi bonds






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






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






21. Charged - need electrons






22. 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






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






24. N - l - ml - ms






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






26. Carbon carbon triple bonds. Suffix-yne.






27. Steps of free radical substitution






28. Formed by mixing different types of orbitals






29. A = observed rotation / concentration * length






30. Object that is not superimposable upon mirror image






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

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






33. 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






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






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






36. Name for ethanal






37. What are the best leaving groups?






38. Highest energy no separation. or 120 separation.






39. When bond angles deviate from ideal values






40. Di - tri - t - sec - n -






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






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






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






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






45. 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






46. Monosubstituted ethylene






47. Not solvated






48. Rotations cancel each other out therefore no optical activity






49. Common name for ethyne






50. Iso - neo - cyclo







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