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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. Compounds with halogen






2. 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






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






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






5. Not solvated






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






7. 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






8. Common name for ethyne






9. Refers to the =CH2 group






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






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






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






13. Two hydroxyl groups






14. Alphabetical order of alkane rxn






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






16. Same molecular formula but different structure






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






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






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

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






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






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






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






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






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






26. Is bonded to only one other carbon atom






27. Formed by mixing different types of orbitals






28. One s and three p orbitals






29. 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-






30. Diol with hydroxyl group on same carbon






31. 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.






32. Functionality is specified by alkoxy- prefix. ROR






33. Kmno4






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






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






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






37. When bond angles deviate from ideal values






38. N - l - ml - ms






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






40. O3






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






42. A molecule with an internal plane of symmetry






43. Di - tri - t - sec - n -






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






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






46. What is produced when o3 with lialh4 or nabh4






47. Rotations cancel each other out therefore no optical activity






48. Lowest priority group projects into the page






49. When boat flips






50. Steps of free radical substitution