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MCAT Organic Chemistry

Subjects : mcat, science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • 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. Lowest priority group projects into the page






2. N - l - ml - ms






3. Sharing of electron between atoms






4. 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.






5. Transfer of electrions from one atome to another






6. When boat flips






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






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






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






10. When bond angles deviate from ideal values






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






12. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart






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






14. Di - tri - t - sec - n -






15. 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






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






17. One s and three p orbitals






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






19. Object that is not superimposable upon mirror image






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






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






22. Diol with hydroxyl group on same carbon






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






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






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






26. Charged - need electrons






27. Functionality is specified by alkoxy- prefix. ROR






28. A molecule with an internal plane of symmetry






29. Refers to the =CH2 group






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






31. Alphabetical order of alkane rxn






32. If reagent has a bunch of oxygen






33. One s and two p 120 degree apart






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






35. Kmno4






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






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






38. Highest energy no separation. or 120 separation.






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






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






41. A = observed rotation / concentration * length






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






43. 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






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






45. 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






46. Hydrocarbon with one or more carbon carbon triple bond






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






48. What are the best leaving groups?






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






50. 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.