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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. Carbon double bonded to an oxygen






2. Transfer of electrions from one atome to another






3. Most favorable of staggared conformations






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






5. Lowest priority group projects into the page






6. 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






7. Sharing of electron between atoms






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






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






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






11. Methyl are 60 degrees apart. kinda stable






12. Iso - neo - cyclo






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






14. Refers to the =CH2 group






15. Common name for ethyne






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






17. N - l - ml - ms






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






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






20. When bond angles deviate from ideal values






21. Object that is not superimposable upon mirror image






22. Name for mathanal






23. Use the Greek root for the number of carbons followed by the ending - - ane






24. Formed by mixing different types of orbitals






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






26. 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.






27. One s and three p orbitals






28. 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






29. Rotations cancel each other out therefore no optical activity






30. Diols with hydroxyl group on adjacent carbon






31. Alphabetical order of alkane rxn






32. Goal is to produce most stable carbocation

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






34. F - CL - Br - I






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






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






37. 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






38. Highest energy no separation. or 120 separation.






39. When boat flips






40. Name for propanal






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






42. 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






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






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






45. O3






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






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






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






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






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