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GRE Chemistry Organic

Subjects : gre, science, chemistry
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. R2C=N-OH






2. OCH3






3. Donate electrons to aromatic ring






4. H2O2






5. Ch2I2 - Zn(Cu)






6. Differ in rotation about sigma bonds






7. Nucleophile adds to ketone (forming alcohol)






8. Less hindered carbon center; chiral inversion






9. Uses Hg(OAc)2 + R'OH; forms ether from alkene






10. Benzaldehyde






11. 2 Sulfide linkages in place of aldehyde






12. Oxidize to -CHO






13. Cycloformation






14. Split an alkene into 2 carbonyls






15. Attach tosyl group onto alcohol






16. R-NH2 + NaNO2/HCl --> R-N=N+ Cl-






17. Cis/trans Isomers






18. Oxirane ring opening






19. Oxidize to -COOH






20. More substituted elimination; more stable






21. Can protect a ketone






22. Forms carboxylic acid; releases N






23. 4-pi system + 2-pi system --> Ring formation






24. Bound to adjacent atoms






25. Elimination to form alkene






26. Formation of salcohol from alkene






27. Ph-NH2






28. Differ in position of atoms






29. Tertiary carbocation formed; relieved by deprotonation






30. Reacts with alkene to form oxirane






31. Formation of ethoxide






32. Bound to same atom






33. Replaces thioacetal/ketal with carbonyl






34. Allylic Substitution






35. Chiral - with superimposable mirror image






36. Cyclic ether






37. Thionyl chloride






38. Highly reactive carbonyl






39. Alcohol closes ring to form oxirane






40. Less substituted elimination; sterically hindered






41. Aldehyde / ketone synthesis






42. Best with electron withdrawing group ortho/para to substitution site






43. Splits an ether into alkyl halides






44. Anti-alignment required






45. Tertiary carbon center; racemic






46. Non-superimposable mirror image






47. Differ in fixed geometrical arrangement of atoms






48. R-SO3H






49. Reduces one bond of benzene ring






50. Reduces ketone to alkane