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MCAT Organic Chemistry

Subjects : mcat, science
Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. Name for ethanal






2. 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.






3. Object that is not superimposable upon mirror image






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






5. What are the best leaving groups?






6. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane






7. Common name for ethyne






8. 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






9. Functionality is specified by alkoxy- prefix. ROR






10. A molecule with an internal plane of symmetry






11. Steps of free radical substitution






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






13. When bond angles deviate from ideal values






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






15. N - l - ml - ms






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






17. M - chloroperoxybenzoic acid






18. Is bonded to only one other carbon atom






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






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






21. F - CL - Br - I






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






23. Compounds with halogen






24. Highest energy no separation. or 120 separation.






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






26. Di - tri - t - sec - n -






27. One s and two p 120 degree apart






28. 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-






29. Carbon double bonded to an oxygen






30. Hydrocarbon with one or more carbon carbon triple bond






31. Most favorable of staggared conformations






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






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






34. Lowest priority group projects into the page






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






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






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






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






39. Combustion reaction occurs through a radical process






40. Kmno4






41. Transfer of electrions from one atome to another






42. Name for propanal






43. Not solvated






44. Alphabetical order of alkane rxn






45. Name for mathanal






46. Formed by mixing different types of orbitals






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






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

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






50. A sigma bond and two pi bonds