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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.
  • 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. 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






2. A molecule with an internal plane of symmetry






3. 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






4. Hydrocarbon with one or more carbon carbon triple bond






5. Iso - neo - cyclo






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






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






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






9. Monosubstituted ethylene






10. Common name for ethyne






11. Zn/h or CH3/s with ozonolysis






12. M - chloroperoxybenzoic acid






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






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






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






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






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






18. Most favorable of staggared conformations






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






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






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






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

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






24. One s and two p 120 degree apart






25. Compounds with halogen






26. Refers to the =CH2 group






27. Goal is to produce most stable carbocation

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28. Diols with hydroxyl group on adjacent carbon






29. What are the best leaving groups?






30. Charged - need electrons






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






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






33. A sigma bond and two pi bonds






34. Di - tri - t - sec - n -






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






36. 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






37. Formed by mixing different types of orbitals






38. Name for ethanal






39. Not solvated






40. 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.






41. Name for mathanal






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






43. O3






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






45. Functionality is specified by alkoxy- prefix. ROR






46. Steps of free radical substitution






47. Kmno4






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






49. Diol with hydroxyl group on same carbon






50. 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-