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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. 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.






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






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






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






5. A molecule with an internal plane of symmetry






6. 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-






7. 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






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






9. 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






10. A = observed rotation / concentration * length






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






12. O3






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






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






15. When bond angles deviate from ideal values






16. 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.






17. Monosubstituted ethylene






18. What are the best leaving groups?






19. Hydrocarbon with one or more carbon carbon triple bond






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






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






22. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.






23. If a compound is able to rotate plane polarized light.






24. Charged - need electrons






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






26. Not solvated






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






28. Common name for ethyne






29. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton






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






31. 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






32. A sigma bond and two pi bonds






33. Alphabetical order of alkane rxn






34. M - chloroperoxybenzoic acid






35. Formed by mixing different types of orbitals






36. If reagent has a bunch of oxygen






37. Functionality is specified by alkoxy- prefix. ROR






38. Lowest priority group projects into the page






39. Is bonded to only one other carbon atom






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






41. Solvents with protons in solution - e.g. water or alcohol. large atoms tend to be better nucleophiles in here because they can shed the solvating protons around them and are more polarizable






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






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






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






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






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






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






48. Carbon carbon triple bonds. Suffix-yne.






49. Same molecular formula but different structure






50. What is produced when o3 with lialh4 or nabh4