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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. Iso - neo - cyclo






2. N - l - ml - ms






3. 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.






4. Name for mathanal






5. Most similar. same molecule only at different points in their rotation. show them with newmans projections






6. One s and two p 120 degree apart






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






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






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






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






11. Common name for ethyne






12. Steps of free radical substitution






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






14. Name for ethanal






15. Two hydroxyl groups






16. Highest energy no separation. or 120 separation.






17. 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-






18. Zn/h or CH3/s with ozonolysis






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






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






21. Compounds with halogen






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






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






24. O3






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






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






27. Hydrocarbon with one or more carbon carbon triple bond






28. Carbon carbon triple bonds. Suffix-yne.






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






30. Combustion reaction occurs through a radical process






31. 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.






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






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






34. Carbon with four different substituents and lack a plane of symmetry






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






36. 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






37. 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






38. Diol with hydroxyl group on same carbon






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






40. A = observed rotation / concentration * length






41. Sharing of electron between atoms






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






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






45. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane






46. A sigma bond and two pi bonds






47. Monosubstituted ethylene






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






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






50. Lowest priority group projects into the page