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






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






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






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






5. Same molecular formula but different structure






6. 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.






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






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






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






10. Formed by mixing different types of orbitals






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


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






13. Steps of free radical substitution






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






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






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






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






19. 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.






20. Highest energy no separation. or 120 separation.






21. Rotations cancel each other out therefore no optical activity






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






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






24. Diol with hydroxyl group on same carbon






25. A = observed rotation / concentration * length






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






27. Compounds with halogen






28. 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






29. Functionality is specified by alkoxy- prefix. ROR






30. If reagent has a bunch of oxygen






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






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






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






34. 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.






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






36. Object that is not superimposable upon mirror image






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






38. When boat flips






39. Share molecular formula but have different chemical and physical properties






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






41. Hydrocarbon with one or more carbon carbon triple bond






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






43. 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






44. Carbon carbon triple bonds. Suffix-yne.






45. Name for ethanal






46. Goal is to produce most stable carbocation


47. 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






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






49. One s and two p 120 degree apart






50. When bond angles deviate from ideal values