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






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






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






4. Goal is to produce most stable carbocation

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






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






7. 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.






8. Common name for ethyne






9. 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






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






11. F - CL - Br - I






12. Methyl are 60 degrees apart. kinda stable






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






14. Formed by mixing different types of orbitals






15. Monosubstituted ethylene






16. 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






17. Charged - need electrons






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






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






20. When boat flips






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






22. A molecule with an internal plane of symmetry






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






24. Alphabetical order of alkane rxn






25. 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






26. Refers to the =CH2 group






27. 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.






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






29. Lowest priority group projects into the page






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






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






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






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






34. When bond angles deviate from ideal values






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






36. Carbon carbon triple bonds. Suffix-yne.






37. Zn/h or CH3/s with ozonolysis






38. If reagent has a bunch of oxygen






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






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






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






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






43. 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.






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






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






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






47. Same molecular formula but different structure






48. Carbon double bonded to an oxygen






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






50. Name for ethanal