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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. Oxidize to -COOH






2. Less substituted elimination; sterically hindered






3. 4-pi system + 2-pi system --> Ring formation






4. Tertiary carbon center; racemic






5. Forms carboxylic acid; releases N






6. Reduces one bond of benzene ring






7. Highly reactive carbonyl






8. H2O2






9. OCH3






10. R2C=N-OH






11. Non-superimposable mirror image






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






13. Less hindered carbon center; chiral inversion






14. Reduces Ar-CH3 to -COOH






15. CH2-






16. Differ in rotation about sigma bonds






17. Reacts with alkene to form oxirane






18. Reduces ketone to alkane






19. One carbon away from aryl group can be reduced with Pd / H2






20. Bound to same atom






21. Benzaldehyde






22. Tertiary carbocation formed; relieved by deprotonation






23. Ch2I2 - Zn(Cu)






24. Elimination to form alkene






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






26. Anti-alignment required






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






28. Aldehyde / ketone synthesis






29. Differ in fixed geometrical arrangement of atoms






30. Cyclic ether






31. Differ in position of atoms






32. Attach tosyl group onto alcohol






33. 2 Sulfide linkages in place of aldehyde






34. Donate electrons to aromatic ring






35. Bound to adjacent atoms






36. Split an alkene into 2 carbonyls






37. More substituted elimination; more stable






38. Alcohol closes ring to form oxirane






39. Cycloformation






40. Oxirane ring opening






41. Can protect a ketone






42. Replaces thioacetal/ketal with carbonyl






43. Splits an ether into alkyl halides






44. Thionyl chloride






45. R-SO3H






46. Formation of ethoxide






47. Oxidize to -CHO






48. Chiral - with superimposable mirror image






49. Nucleophile adds to ketone (forming alcohol)






50. Cis/trans Isomers