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






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






3. Transfer of electrions from one atome to another






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






5. N - l - ml - ms






6. O3






7. Carbon double bonded to an oxygen






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






9. Common name for ethyne






10. One s and three p orbitals






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






12. One s and two p 120 degree apart






13. A molecule with an internal plane of symmetry






14. 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






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






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






17. Diols with hydroxyl group on adjacent carbon






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. Name for mathanal






20. Charged - need electrons






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






22. Name for ethanal






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






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






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






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






27. 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.






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






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






30. Diol with hydroxyl group on same carbon






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






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






33. Hydrocarbon with one or more carbon carbon triple bond






34. Carbon carbon triple bonds. Suffix-yne.






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






36. 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.






37. Iso - neo - cyclo






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






39. Lowest priority group projects into the page






40. Same molecular formula but different structure






41. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4






42. Kmno4






43. 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.






44. What are the best leaving groups?






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






46. Object that is not superimposable upon mirror image






47. 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






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






49. M - chloroperoxybenzoic acid






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