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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 carbon triple bonds. Suffix-yne.






2. Methyl are 60 degrees apart. kinda stable






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






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






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






6. 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






7. Nitrogen containing compound - longest chain attached to nitrogen used in backbone. use e and replace with AMINE. if more complex molecule present - use prefix amino. IF additional group added - use N-






8. 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.






9. 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






10. Refers to the =CH2 group






11. Is bonded to only one other carbon atom






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






13. N - l - ml - ms






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






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






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






17. Functionality is specified by alkoxy- prefix. ROR






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






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






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






21. What are the best leaving groups?






22. One s and two p 120 degree apart






23. One s and three p orbitals






24. Lowest priority group projects into the page






25. Diols with hydroxyl group on adjacent carbon






26. What is produced when o3 with lialh4 or nabh4






27. Carbon double bonded to an oxygen






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

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29. Rotations cancel each other out therefore no optical activity






30. Zn/h or CH3/s with ozonolysis






31. Transfer of electrions from one atome to another






32. Hydrocarbon with one or more carbon carbon triple bond






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






34. M - chloroperoxybenzoic acid






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






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






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






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






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






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






41. 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






42. Same molecular formula but different structure






43. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane






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






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






46. Highest energy no separation. or 120 separation.






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






48. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.






49. A molecule with an internal plane of symmetry






50. Most favorable of staggared conformations