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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.
  • 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. Lowest priority group projects into the page






2. 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






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






4. Transfer of electrions from one atome to another






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






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






7. Carbon carbon triple bonds. Suffix-yne.






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






9. 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-






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






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






12. Object that is not superimposable upon mirror image






13. 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.






14. Not solvated






15. Di - tri - t - sec - n -






16. O3






17. One s and two p 120 degree apart






18. Name for ethanal






19. M - chloroperoxybenzoic acid






20. Hydrocarbon with one or more carbon carbon triple bond






21. Is bonded to only one other carbon atom






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






23. Zn/h or CH3/s with ozonolysis






24. Methyl are 60 degrees apart. kinda stable






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






26. 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






27. Compounds with halogen






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






29. Same molecular formula but different structure






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






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






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






33. What is produced when o3 with lialh4 or nabh4






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






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






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






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






38. F - CL - Br - I






39. A = observed rotation / concentration * length






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

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






42. Iso - neo - cyclo






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






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






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






46. 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.






47. 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






48. N - l - ml - ms






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






50. Refers to the =CH2 group