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MCAT Organic Chemistry

Subjects : mcat, science
Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. Name for ethanal






2. Combustion reaction occurs through a radical process






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






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






5. F - CL - Br - I






6. Hydrocarbon with one or more carbon carbon triple bond






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






8. One s and three p orbitals






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






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






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






12. Carbon double bonded to an oxygen






13. What is produced when o3 with lialh4 or nabh4






14. Is bonded to only one other carbon atom






15. Methyl are 60 degrees apart. kinda stable






16. Formed by mixing different types of orbitals






17. Name for mathanal






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






19. 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-






20. Sharing of electron between atoms






21. If reagent has a bunch of oxygen






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






23. O3






24. 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






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






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






27. A sigma bond and two pi bonds






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






29. Diols with hydroxyl group on adjacent carbon






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






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






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






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






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






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






36. 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






37. Name for propanal






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






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






40. Monosubstituted ethylene






41. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.






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






43. Rotations cancel each other out therefore no optical activity






44. 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.






45. 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






46. A molecule with an internal plane of symmetry






47. Zn/h or CH3/s with ozonolysis






48. Iso - neo - cyclo






49. Goal is to produce most stable carbocation

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