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






3. Is bonded to only one other carbon atom






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






5. When bond angles deviate from ideal values






6. 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.






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






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






9. 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






10. Carbon double bonded to an oxygen






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






12. When boat flips






13. What are the best leaving groups?






14. Common name for ethyne






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






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






17. Not solvated






18. Alphabetical order of alkane rxn






19. Kmno4






20. Carbon carbon triple bonds. Suffix-yne.






21. A = observed rotation / concentration * length






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






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






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






25. 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






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






27. Rotations cancel each other out therefore no optical activity






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






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






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






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






32. O3






33. Highest energy no separation. or 120 separation.






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






35. Transfer of electrions from one atome to another






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. Spatial arrangement of the atoms or groups of a sterioisomer






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






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






40. Di - tri - t - sec - n -






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






42. Combustion reaction occurs through a radical process






43. Most favorable of staggared conformations






44. 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-






45. Object that is not superimposable upon mirror image






46. 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






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






48. Diols with hydroxyl group on adjacent carbon






49. Zn/h or CH3/s with ozonolysis






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







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