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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. Same molecular formula but different structure






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






3. F - CL - Br - I






4. Is bonded to only one other carbon atom






5. Two hydroxyl groups






6. A molecule with an internal plane of symmetry






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






8. Methyl are 60 degrees apart. kinda stable






9. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4






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






11. Formed by mixing different types of orbitals






12. Common name for ethyne






13. 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






14. Hydrocarbon with one or more carbon carbon triple bond






15. When boat flips






16. 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






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






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






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






20. Charged - need electrons






21. Steps of free radical substitution






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






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






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






25. Diols with hydroxyl group on adjacent carbon






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






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






28. Rotations cancel each other out therefore no optical activity






29. N - l - ml - ms






30. 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






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






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






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






36. Monosubstituted ethylene






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






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






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






40. Transfer of electrions from one atome to another






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






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






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






44. Compounds with halogen






45. 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.






46. Name for ethanal






47. One s and two p 120 degree apart






48. Sharing of electron between atoms






49. Name for propanal






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