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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. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation






2. One s and two p 120 degree apart






3. Charged - need electrons






4. Lowest priority group projects into the page






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






6. Name for mathanal






7. Iso - neo - cyclo






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






9. Diols with hydroxyl group on adjacent carbon






10. One s and three p orbitals






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






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






13. 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






14. 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






15. What are the best leaving groups?






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






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






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






19. 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.






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






21. Highest energy no separation. or 120 separation.






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






23. Sharing of electron between atoms






24. Di - tri - t - sec - n -






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






26. Combustion reaction occurs through a radical process






27. Object that is not superimposable upon mirror image






28. Methyl are 60 degrees apart. kinda stable






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






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






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






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






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






34. A molecule with an internal plane of symmetry






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






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






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






38. F - CL - Br - I






39. Name for ethanal






40. Steps of free radical substitution






41. Monosubstituted ethylene






42. Same molecular formula but different structure






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






44. A = observed rotation / concentration * length






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






46. Refers to the =CH2 group






47. Alphabetical order of alkane rxn






48. Transfer of electrions from one atome to another






49. M - chloroperoxybenzoic acid






50. 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