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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. Carbon double bonded to an oxygen






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






3. Rotations cancel each other out therefore no optical activity






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






5. 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






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. Functionality is specified by alkoxy- prefix. ROR






8. Name for ethanal






9. Alphabetical order of alkane rxn






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






11. Hydrocarbon with one or more carbon carbon triple bond






12. When bond angles deviate from ideal values






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






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






15. Zn/h or CH3/s with ozonolysis






16. Lowest priority group projects into the page






17. Di - tri - t - sec - n -






18. Carbon carbon triple bonds. Suffix-yne.






19. Monosubstituted ethylene






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






21. Diols with hydroxyl group on adjacent carbon






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






23. Is bonded to only one other carbon atom






24. Object that is not superimposable upon mirror image






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






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






27. A = observed rotation / concentration * length






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






29. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced






30. M - chloroperoxybenzoic acid






31. A molecule with an internal plane of symmetry






32. A sigma bond and two pi bonds






33. What is produced when o3 with lialh4 or nabh4






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






35. 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






36. N - l - ml - ms






37. When boat flips






38. When two atomic orbitals combine. obtained mathematically by adding or subtracting wave functions. if sings are the same - make bonding - if different - less stable antibonding.






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






40. Compounds with halogen






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






42. Two hydroxyl groups






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






44. 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






45. Refers to the =CH2 group






46. Steps of free radical substitution






47. 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.






48. One s and three p orbitals






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






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







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