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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. One s and three p orbitals






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






3. Is bonded to only one other carbon atom






4. Name for mathanal






5. Highest energy no separation. or 120 separation.






6. O3






7. Propylenes attached to a backbone at the C-3 position. Meaning the double bond at end of the chain and single bonded carbon at rest






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






9. N - l - ml - ms






10. Common name for ethyne






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






12. Name for ethanal






13. Two hydroxyl groups






14. 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.






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






16. Most favorable of staggared conformations






17. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc






18. 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






19. What are the best leaving groups?






20. A = observed rotation / concentration * length






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






22. Rotations cancel each other out therefore no optical activity






23. Object that is not superimposable upon mirror image






24. Iso - neo - cyclo






25. A molecule with an internal plane of symmetry






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






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






28. Kmno4






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






30. 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-






31. Sharing of electron between atoms






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






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






34. Charged - need electrons






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






36. Goal is to produce most stable carbocation

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37. 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.






38. Di - tri - t - sec - n -






39. Functionality is specified by alkoxy- prefix. ROR






40. When bond angles deviate from ideal values






41. Carbon carbon triple bonds. Suffix-yne.






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






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






44. 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.






45. Compounds with halogen






46. Diol with hydroxyl group on same carbon






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






48. A sigma bond and two pi bonds






49. Combustion reaction occurs through a radical process






50. What is produced when o3 with lialh4 or nabh4







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