Test your basic knowledge |

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






2. 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






3. What is produced when o3 with lialh4 or nabh4






4. What are the best leaving groups?






5. Object that is not superimposable upon mirror image






6. 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






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






8. F - CL - Br - I






9. Common name for ethyne






10. 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-






11. Hydrocarbon with one or more carbon carbon triple bond






12. Monosubstituted ethylene






13. If reagent has a bunch of oxygen






14. Kmno4






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






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






17. Diols with hydroxyl group on adjacent carbon






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






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






20. Most favorable of staggared conformations






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






22. 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






23. One s and two p 120 degree apart






24. Rotations cancel each other out therefore no optical activity






25. Steps of free radical substitution






26. Combustion reaction occurs through a radical process






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






28. Iso - neo - cyclo






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






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






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






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






33. Name for mathanal






34. Formed by mixing different types of orbitals






35. 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.






36. Charged - need electrons






37. Same molecular formula but different structure






38. Zn/h or CH3/s with ozonolysis






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






40. 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.






41. Highest energy no separation. or 120 separation.






42. 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






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






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






45. O3






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






47. N - l - ml - ms






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






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






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