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






2. Combustion reaction occurs through a radical process






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






4. Is bonded to only one other carbon atom






5. When bond angles deviate from ideal values






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






7. Highest energy no separation. or 120 separation.






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






9. Steps of free radical substitution






10. One s and two p 120 degree apart






11. A = observed rotation / concentration * length






12. What are the best leaving groups?






13. 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






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






15. Two hydroxyl groups






16. Hydrocarbon with one or more carbon carbon triple bond






17. Compounds with halogen






18. 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.






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






20. Methyl are 60 degrees apart. kinda stable






21. Not solvated






22. Formed by mixing different types of orbitals






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






24. Lowest priority group projects into the page






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






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






27. 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






28. Functionality is specified by alkoxy- prefix. ROR






29. Iso - neo - cyclo






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






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






32. 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.






33. F - CL - Br - I






34. Kmno4






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






36. Name for ethanal






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






38. Refers to the =CH2 group






39. A sigma bond and two pi bonds






40. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon






41. M - chloroperoxybenzoic acid






42. Zn/h or CH3/s with ozonolysis






43. Name for propanal






44. Carbon carbon triple bonds. Suffix-yne.






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






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






47. Rotations cancel each other out therefore no optical activity






48. Di - tri - t - sec - n -






49. Goal is to produce most stable carbocation

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