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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. Kmno4






2. 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






3. When boat flips






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






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






6. Di - tri - t - sec - n -






7. F - CL - Br - I






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






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






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






11. Charged - need electrons






12. If reagent has a bunch of oxygen






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






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






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






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






17. Name for propanal






18. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton






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






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






21. What are the best leaving groups?






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






23. Sharing of electron between atoms






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






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






26. Methyl are 60 degrees apart. kinda stable






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






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






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






30. A = observed rotation / concentration * length






31. Highest energy no separation. or 120 separation.






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






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






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






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






36. Propylenes attached to a backbone at the C-3 position. Meaning the double bond at end of the chain and single bonded carbon at rest






37. M - chloroperoxybenzoic acid






38. Two hydroxyl groups






39. One s and three p orbitals






40. Steps of free radical substitution






41. Transfer of electrions from one atome to another






42. One s and two p 120 degree apart






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






44. Carbon carbon triple bonds. Suffix-yne.






45. 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






46. Diol with hydroxyl group on same carbon






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






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






49. 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.






50. Goal is to produce most stable carbocation