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






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






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






4. Carbon double bonded to an oxygen






5. Methyl are 60 degrees apart. kinda stable






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






7. Transfer of electrions from one atome to another






8. Sharing of electron between atoms






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






10. Goal is to produce most stable carbocation

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11. Same molecular formula but different structure






12. N - l - ml - ms






13. Object that is not superimposable upon mirror image






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






15. Functionality is specified by alkoxy- prefix. ROR






16. 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.






17. A = observed rotation / concentration * length






18. Lowest priority group projects into the page






19. M - chloroperoxybenzoic acid






20. What are the best leaving groups?






21. 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






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






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






24. Most favorable of staggared conformations






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






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






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






28. Two hydroxyl groups






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






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






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






32. Steps of free radical substitution






33. Highest energy no separation. or 120 separation.






34. Is bonded to only one other carbon atom






35. Iso - neo - cyclo






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






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






38. Not solvated






39. When boat flips






40. What is produced when o3 with lialh4 or nabh4






41. Refers to the =CH2 group






42. 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.






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






44. If reagent has a bunch of oxygen






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






46. F - CL - Br - I






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






48. Zn/h or CH3/s with ozonolysis






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






50. Diol with hydroxyl group on same carbon