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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. When boat flips






2. Highest energy no separation. or 120 separation.






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






4. 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






5. N - l - ml - ms






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






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






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






9. Most favorable of staggared conformations






10. Charged - need electrons






11. Diols with hydroxyl group on adjacent carbon






12. Iso - neo - cyclo






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






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






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






16. A molecule with an internal plane of symmetry






17. Rotations cancel each other out therefore no optical activity






18. 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.






19. Same molecular formula but different structure






20. Alphabetical order of alkane rxn






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






22. Monosubstituted ethylene






23. Methyl are 60 degrees apart. kinda stable






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






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






26. Steps of free radical substitution






27. If reagent has a bunch of oxygen






28. Functionality is specified by alkoxy- prefix. ROR






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






30. Diol with hydroxyl group on same carbon






31. O3






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






33. Combustion reaction occurs through a radical process






34. 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.






35. Refers to the =CH2 group






36. Carbon carbon triple bonds. Suffix-yne.






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

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38. 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






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






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






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






42. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain






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






44. Hydrocarbon with one or more carbon carbon triple bond






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






46. F - CL - Br - I






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






48. A = observed rotation / concentration * length






49. 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






50. One s and three p orbitals