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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.
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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. O3






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

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






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






5. Iso - neo - cyclo






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






7. Name for mathanal






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






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






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






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






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






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






14. Steps of free radical substitution






15. Charged - need electrons






16. Refers to the =CH2 group






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






18. Monosubstituted ethylene






19. Functionality is specified by alkoxy- prefix. ROR






20. 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






21. 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.






22. Name for ethanal






23. M - chloroperoxybenzoic acid






24. Diols with hydroxyl group on adjacent carbon






25. Two hydroxyl groups






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






27. 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.






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






29. A sigma bond and two pi bonds






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






31. What is produced when o3 with lialh4 or nabh4






32. Di - tri - t - sec - n -






33. 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






34. 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






35. 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.






36. Diol with hydroxyl group on same carbon






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






38. Lowest priority group projects into the page






39. A = observed rotation / concentration * length






40. Same molecular formula but different structure






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






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






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






44. Object that is not superimposable upon mirror image






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






46. Highest energy no separation. or 120 separation.






47. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene






48. One s and two p 120 degree apart






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






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







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