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






2. Di - tri - t - sec - n -






3. When bond angles deviate from ideal values






4. 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






5. Diol with hydroxyl group on same carbon






6. 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-






7. 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






8. Lowest priority group projects into the page






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






10. Hydrocarbon with one or more carbon carbon triple bond






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






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






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






14. Carbon double bonded to an oxygen






15. 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.






16. Alphabetical order of alkane rxn






17. 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






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






19. O3






20. Two hydroxyl groups






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






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






23. Methyl are 60 degrees apart. kinda stable






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






25. Most favorable of staggared conformations






26. What are the best leaving groups?






27. Kmno4






28. Zn/h or CH3/s with ozonolysis






29. Transfer of electrions from one atome to another






30. Name for ethanal






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






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






33. When boat flips






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






35. Rotations cancel each other out therefore no optical activity






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






37. Name for propanal






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






39. Functionality is specified by alkoxy- prefix. ROR






40. Use the Greek root for the number of carbons followed by the ending - - ane






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






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






43. A molecule with an internal plane of symmetry






44. Name for mathanal






45. Highest energy no separation. or 120 separation.






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






47. N - l - ml - ms






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






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






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