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






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






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






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






5. Goal is to produce most stable carbocation


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






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






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






9. Refers to the =CH2 group






10. Name for mathanal






11. Kmno4






12. When bond angles deviate from ideal values






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






14. 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.






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






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






17. What are the best leaving groups?






18. N - l - ml - ms






19. 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






20. Transfer of electrions from one atome to another






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






22. Alphabetical order of alkane rxn






23. Common name for ethyne






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






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. If reagent has a bunch of oxygen






28. Same molecular formula but different structure






29. Object that is not superimposable upon mirror image






30. Monosubstituted ethylene






31. Diols with hydroxyl group on adjacent carbon






32. Formed by mixing different types of orbitals






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






34. What is produced when o3 with lialh4 or nabh4






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






36. Name for ethanal






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






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






39. 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.






40. Methyl are 60 degrees apart. kinda stable






41. 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






42. Di - tri - t - sec - n -






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






44. 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






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






46. One s and two p 120 degree apart






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






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






49. Most favorable of staggared conformations






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