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






2. 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






3. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.






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






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






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






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






8. Object that is not superimposable upon mirror image






9. Functionality is specified by alkoxy- prefix. ROR






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






11. Alphabetical order of alkane rxn






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






13. 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.






14. Highest energy no separation. or 120 separation.






15. 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






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






17. Same molecular formula but different structure






18. Carbon double bonded to an oxygen






19. A molecule with an internal plane of symmetry






20. Is bonded to only one other carbon atom






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






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






23. When bond angles deviate from ideal values






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






25. Steps of free radical substitution






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






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






28. Name for mathanal






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






30. Rotations cancel each other out therefore no optical activity






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






32. 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.






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






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

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35. Lowest priority group projects into the page






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






37. 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






38. N - l - ml - ms






39. If reagent has a bunch of oxygen






40. One s and two p 120 degree apart






41. Methyl are 60 degrees apart. kinda stable






42. When boat flips






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






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






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






46. Formed by mixing different types of orbitals






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






48. Iso - neo - cyclo






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






50. Zn/h or CH3/s with ozonolysis