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






2. Diols with hydroxyl group on adjacent carbon






3. Name for mathanal






4. Sharing of electron between atoms






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






6. Zn/h or CH3/s with ozonolysis






7. Functionality is specified by alkoxy- prefix. ROR






8. Charged - need electrons






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






10. What is produced when o3 with lialh4 or nabh4






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






12. One s and two p 120 degree apart






13. Most favorable of staggared conformations






14. Hydrocarbon with one or more carbon carbon triple bond






15. Rotations cancel each other out therefore no optical activity






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






17. 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






18. Object that is not superimposable upon mirror image






19. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule






20. Transfer of electrions from one atome to another






21. Name for ethanal






22. Carbon double bonded to an oxygen






23. Not solvated






24. When bond angles deviate from ideal values






25. Name for propanal






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






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






28. Reaction of alkane with oxygen to form carbon dioxide - water and heat.






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






30. A sigma bond and two pi bonds






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






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






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






34. F - CL - Br - I






35. 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.






36. Goal is to produce most stable carbocation

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37. Two hydroxyl groups






38. Highest energy no separation. or 120 separation.






39. 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






40. A molecule with an internal plane of symmetry






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






42. 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






43. 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






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






45. Compounds with halogen






46. 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






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






48. N - l - ml - ms






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






50. A = observed rotation / concentration * length