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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. 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.






2. 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






3. Formed by mixing different types of orbitals






4. Lowest priority group projects into the page






5. Rotations cancel each other out therefore no optical activity






6. Common name for ethyne






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






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






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






10. Combustion reaction occurs through a radical process






11. F - CL - Br - I






12. A = observed rotation / concentration * length






13. N - l - ml - ms






14. Diols with hydroxyl group on adjacent carbon






15. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.

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






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






19. Goal is to produce most stable carbocation

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






21. One s and three p orbitals






22. One s and two p 120 degree apart






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






24. A sigma bond and two pi bonds






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






26. Hydrocarbon with one or more carbon carbon triple bond






27. Compounds with halogen






28. Same molecular formula but different structure






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






30. O3






31. Diol with hydroxyl group on same carbon






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






33. Name for ethanal






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






35. Name for propanal






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






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






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






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






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






41. Methyl are 60 degrees apart. kinda stable






42. Carbon double bonded to an oxygen






43. Zn/h or CH3/s with ozonolysis






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






45. Not solvated






46. Two hydroxyl groups






47. Carbon carbon triple bonds. Suffix-yne.






48. Charged - need electrons






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






50. Functionality is specified by alkoxy- prefix. ROR