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






2. Name for mathanal






3. Kmno4






4. Methyl are 60 degrees apart. kinda stable






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






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






7. Object that is not superimposable upon mirror image






8. Rotations cancel each other out therefore no optical activity






9. Functionality is specified by alkoxy- prefix. ROR






10. 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






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






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






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






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






15. Transfer of electrions from one atome to another






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. Highest energy no separation. or 120 separation.






18. Alphabetical order of alkane rxn






19. Carbon carbon triple bonds. Suffix-yne.






20. Refers to the =CH2 group






21. Same molecular formula but different structure






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






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






24. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution






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






26. One s and three p orbitals






27. When bond angles deviate from ideal values






28. 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






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






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






31. A sigma bond and two pi bonds






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






33. Zn/h or CH3/s with ozonolysis






34. Common name for ethyne






35. A = observed rotation / concentration * length






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






37. One s and two p 120 degree apart






38. Compounds with halogen






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


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






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






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






43. What are the best leaving groups?






44. 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






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






46. What is produced when o3 with lialh4 or nabh4






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






48. Charged - need electrons






49. Diol with hydroxyl group on same carbon






50. Carbon double bonded to an oxygen