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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. Functionality is specified by alkoxy- prefix. ROR






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






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






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






5. When boat flips






6. 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






7. Same molecular formula but different structure






8. Diol with hydroxyl group on same carbon






9. Combustion reaction occurs through a radical process






10. Refers to the =CH2 group






11. A sigma bond and two pi bonds






12. Highest energy no separation. or 120 separation.






13. What is produced when o3 with lialh4 or nabh4






14. 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






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






16. Object that is not superimposable upon mirror image






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






18. Most favorable of staggared conformations






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






20. Kmno4






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






22. Compounds with halogen






23. Carbon carbon triple bonds. Suffix-yne.






24. 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.






25. 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-






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. Name for ethanal






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






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






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






31. When bond angles deviate from ideal values






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






33. 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






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






35. A molecule with an internal plane of symmetry






36. Goal is to produce most stable carbocation

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37. One s and three p orbitals






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






39. What are the best leaving groups?






40. Charged - need electrons






41. Monosubstituted ethylene






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






43. Hydrocarbon with one or more carbon carbon triple bond






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






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






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






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






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






49. 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.






50. Is bonded to only one other carbon atom