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






2. Alphabetical order of alkane rxn






3. Common name for ethyne






4. 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.






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






6. Not solvated






7. Carbon carbon triple bonds. Suffix-yne.






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






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






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






11. Same molecular formula but different structure






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






13. F - CL - Br - I






14. When boat flips






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






16. 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-






17. A molecule with an internal plane of symmetry






18. Most favorable of staggared conformations






19. Object that is not superimposable upon mirror image






20. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans






21. Iso - neo - cyclo






22. What is produced when o3 with lialh4 or nabh4






23. 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






24. Kmno4






25. Diols with hydroxyl group on adjacent carbon






26. 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.






27. Steps of free radical substitution






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






29. What are the best leaving groups?






30. Carbon double bonded to an oxygen






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






32. When bond angles deviate from ideal values






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






34. One s and two p 120 degree apart






35. Goal is to produce most stable carbocation

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






37. Solvents with protons in solution - e.g. water or alcohol. large atoms tend to be better nucleophiles in here because they can shed the solvating protons around them and are more polarizable






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






39. How many stereoisomers can a molecule have with n chiral centers






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






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






42. Hydrocarbon with one or more carbon carbon triple bond






43. Is bonded to only one other carbon atom






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






45. Diol with hydroxyl group on same carbon






46. Lowest priority group projects into the page






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






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






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






50. Sharing of electron between atoms







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