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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. 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.






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






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






4. Diols with hydroxyl group on adjacent carbon






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






6. Functionality is specified by alkoxy- prefix. ROR






7. Same molecular formula but different structure






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






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






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






11. Kmno4






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






13. A molecule with an internal plane of symmetry






14. Goal is to produce most stable carbocation

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






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






17. Common name for ethyne






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






19. 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






20. Hydrocarbon with one or more carbon carbon triple bond






21. One s and two p 120 degree apart






22. Carbon carbon triple bonds. Suffix-yne.






23. Transfer of electrions from one atome to another






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






25. Diol with hydroxyl group on same carbon






26. 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.






27. 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






28. A = observed rotation / concentration * length






29. Di - tri - t - sec - n -






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






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






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






33. A sigma bond and two pi bonds






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






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






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






37. When bond angles deviate from ideal values






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






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






40. Rotations cancel each other out therefore no optical activity






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






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






43. Not solvated






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

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45. Iso - neo - cyclo






46. What are the best leaving groups?






47. 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






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






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






50. What is produced when o3 with lialh4 or nabh4