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






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






3. Sharing of electron between atoms






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






5. What is produced when o3 with lialh4 or nabh4






6. When boat flips






7. 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






8. M - chloroperoxybenzoic acid






9. Name for mathanal






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






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






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






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. Refers to the =CH2 group






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






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






17. One s and three p orbitals






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






19. Is bonded to only one other carbon atom






20. When bond angles deviate from ideal values






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






22. 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






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






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






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






26. Highest energy no separation. or 120 separation.






27. Not solvated






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






29. Zn/h or CH3/s with ozonolysis






30. Iso - neo - cyclo






31. F - CL - Br - I






32. Goal is to produce most stable carbocation

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33. A = observed rotation / concentration * length






34. Alphabetical order of alkane rxn






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






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






37. Compounds with halogen






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






39. Hydrocarbon with one or more carbon carbon triple bond






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






41. Most favorable of staggared conformations






42. What are the best leaving groups?






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






44. Monosubstituted ethylene






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






46. Formed by mixing different types of orbitals






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






48. Combustion reaction occurs through a radical process






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






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