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






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






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






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






5. When bond angles deviate from ideal values






6. 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






7. Formed by mixing different types of orbitals






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






9. Refers to the =CH2 group






10. Compounds with halogen






11. Hydrocarbon with one or more carbon carbon triple bond






12. 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






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






14. Name for mathanal






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






16. Kmno4






17. 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.






18. Zn/h or CH3/s with ozonolysis






19. When boat flips






20. Is bonded to only one other carbon atom






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






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






23. Diols with hydroxyl group on adjacent carbon






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






25. Combustion reaction occurs through a radical process






26. Not solvated






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






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






29. Iso - neo - cyclo






30. Sharing of electron between atoms






31. N - l - ml - ms






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






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






34. Transfer of electrions from one atome to another






35. 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.






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






37. O3






38. Methyl are 60 degrees apart. kinda stable






39. Charged - need electrons






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






41. Two hydroxyl groups






42. Name for ethanal






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






44. Carbon double bonded to an oxygen






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






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






47. Monosubstituted ethylene






48. What are the best leaving groups?






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






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