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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. Charged - need electrons






2. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'






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






4. Lowest priority group projects into the page






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






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






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






8. A = observed rotation / concentration * length






9. Diols with hydroxyl group on adjacent carbon






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






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






12. Diol with hydroxyl group on same carbon






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






14. Transfer of electrions from one atome to another






15. Nitrogen containing compound - longest chain attached to nitrogen used in backbone. use e and replace with AMINE. if more complex molecule present - use prefix amino. IF additional group added - use N-






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






17. Rotations cancel each other out therefore no optical activity






18. N - l - ml - ms






19. Object that is not superimposable upon mirror image






20. Formed by mixing different types of orbitals






21. Compounds with halogen






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






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






24. Most favorable of staggared conformations






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






26. One s and three p orbitals






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






28. O3






29. 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






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






31. Carbon double bonded to an oxygen






32. If reagent has a bunch of oxygen






33. 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






34. 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.






35. Methyl are 60 degrees apart. kinda stable






36. What is produced when o3 with lialh4 or nabh4






37. Sharing of electron between atoms






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






39. Name for propanal






40. Functionality is specified by alkoxy- prefix. ROR






41. Combustion reaction occurs through a radical process






42. Name for ethanal






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






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






45. What are the best leaving groups?






46. Iso - neo - cyclo






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






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






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






50. Hydrocarbon with one or more carbon carbon triple bond