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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. 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






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






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






4. Combustion reaction occurs through a radical process






5. N - l - ml - ms






6. Two hydroxyl groups






7. Common name for ethyne






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


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






10. Refers to the =CH2 group






11. Rotations cancel each other out therefore no optical activity






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






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






14. 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.






15. Goal is to produce most stable carbocation


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






17. 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






18. Methyl are 60 degrees apart. kinda stable






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






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






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






22. Zn/h or CH3/s with ozonolysis






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






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






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






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






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






28. One s and two p 120 degree apart






29. Sharing of electron between atoms






30. If reagent has a bunch of oxygen






31. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.






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






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






34. Monosubstituted ethylene






35. A molecule with an internal plane of symmetry






36. Formed by mixing different types of orbitals






37. Diols with hydroxyl group on adjacent carbon






38. Hydrocarbon with one or more carbon carbon triple bond






39. Is bonded to only one other carbon atom






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






41. A = observed rotation / concentration * length






42. Diol with hydroxyl group on same carbon






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






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






45. Carbon double bonded to an oxygen






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






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






48. 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.






49. Steps of free radical substitution






50. 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