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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. Charged - need electrons






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






3. Rotations cancel each other out therefore no optical activity






4. Steps of free radical substitution






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






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






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






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






10. Goal is to produce most stable carbocation

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11. Diols with hydroxyl group on adjacent carbon






12. Functionality is specified by alkoxy- prefix. ROR






13. Refers to the =CH2 group






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






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






17. Object that is not superimposable upon mirror image






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






19. Lowest priority group projects into the page






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






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






22. 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.






23. One s and three p orbitals






24. Diol with hydroxyl group on same carbon






25. When bond angles deviate from ideal values






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

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






28. If reagent has a bunch of oxygen






29. Name for propanal






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






31. Zn/h or CH3/s with ozonolysis






32. 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






33. Two hydroxyl groups






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






35. Name for ethanal






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






37. Most favorable of staggared conformations






38. Hydrocarbon with one or more carbon carbon triple bond






39. Carbon carbon triple bonds. Suffix-yne.






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






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






42. When boat flips






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






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






45. Not solvated






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






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






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






49. 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.






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