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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. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart






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






4. 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






5. Diols with hydroxyl group on adjacent carbon






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






7. 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






8. Monosubstituted ethylene






9. 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.






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






11. Refers to the =CH2 group






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






13. 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






14. Diol with hydroxyl group on same carbon






15. Formed by mixing different types of orbitals






16. M - chloroperoxybenzoic acid






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






18. Goal is to produce most stable carbocation

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19. 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.






20. Sharing of electron between atoms






21. One s and three p orbitals






22. Share molecular formula but have different chemical and physical properties






23. Name for mathanal






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






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






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






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






28. Is bonded to only one other carbon atom






29. Rotations cancel each other out therefore no optical activity






30. Hydrocarbon with one or more carbon carbon triple bond






31. Name for ethanal






32. If reagent has a bunch of oxygen






33. 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






34. Two hydroxyl groups






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






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






37. A = observed rotation / concentration * length






38. Highest energy no separation. or 120 separation.






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






40. What is produced when o3 with lialh4 or nabh4






41. Steps of free radical substitution






42. Object that is not superimposable upon mirror image






43. Charged - need electrons






44. Carbon carbon triple bonds. Suffix-yne.






45. Transfer of electrions from one atome to another






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






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






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






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






50. 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.