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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. Carbon double bonded to an oxygen






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






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






4. O3






5. 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.






6. Highest energy no separation. or 120 separation.






7. A sigma bond and two pi bonds






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






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






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






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






12. When bond angles deviate from ideal values






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

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






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






16. Alphabetical order of alkane rxn






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






18. A molecule with an internal plane of symmetry






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






20. What are the best leaving groups?






21. Name for propanal






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






23. N - l - ml - ms






24. Combustion reaction occurs through a radical process






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






26. What is produced when o3 with lialh4 or nabh4






27. One s and two p 120 degree apart






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






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






30. M - chloroperoxybenzoic acid






31. When boat flips






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






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






34. Is bonded to only one other carbon atom






35. Lowest priority group projects into the page






36. 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.






37. Rotations cancel each other out therefore no optical activity






38. Name for mathanal






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






40. Monosubstituted ethylene






41. Diol with hydroxyl group on same carbon






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






43. Kmno4






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. Goal is to produce most stable carbocation

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






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






48. 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






49. Compounds with halogen






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